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Mimi
Certified Grammar Tutor
Mimi
MS Harvard University • BA Dartmouth College
6+ Years Tutoring

Mimi's museum education background — where object labels and wall texts have to communicate complex ideas in grammatically flawless, accessible prose — gave her an unusual entry point into teaching grammar as a tool for clarity rather than a set of abstract rules. Her Masters in Education from Harvard deepened that approach, and she now unpacks sentence structure, punctuation, and syntax by connecting each choice to what the writer is actually trying to say. Her ESL and literacy teaching experience also means she can adjust explanations for students encountering English grammar conventions for the first time.

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Aaron
Certified Grammar Tutor
Aaron
BA The University of Texas at Dallas • Current Grad Student, Mechanical Engineering Duke University
10+ Years Tutoring

Clear technical writing is a survival skill in engineering, and Aaron's graduate program demands precision with sentence structure, punctuation, and usage on every lab report and research paper. He applies that same rigor to grammar tutoring — diagramming how clauses connect, explaining why comma splices break a sentence's logic, and drilling the pronoun-antecedent and subject-verb rules that standardized tests love to test.

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Nina
MS Columbia University • BA Northwestern University
10+ Years Tutoring

Clear scientific writing demands precise grammar, and Nina's graduate training at Columbia required exactly that — constructing complex sentences with correct parallel structure, punctuation, and subject-verb agreement across dense technical prose. She applies that same attention to detail when teaching grammar rules, breaking down why a comma splice weakens an argument or how misplaced modifiers change meaning.

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Reid
PhD Harvard University • BA Wesleyan University
1+ Years Tutoring

Comma splices, dangling modifiers, subject-verb agreement errors — Reid doesn't just mark them wrong. He teaches the logic behind English grammar rules so students can self-edit with confidence, an approach sharpened by years of writing instruction and his own doctoral-level academic writing at Harvard.

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Christopher
BA Harvard College
1+ Years Tutoring

Christopher treats grammar the way an engineer treats a schematic: every comma, clause, and verb agreement follows a logical rule that can be learned systematically. His own writing background — from college essays to literary analysis — means he teaches grammar in context, showing how a misplaced modifier or subject-verb disagreement actually changes meaning on the page.

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Liz
MS Simmons College • BA Washington University in St. Louis
1+ Years Tutoring

Most grammar instruction throws rules at students without explaining the logic underneath — why a comma splice is wrong, or when a semicolon actually earns its place. Liz, who studied humanities and history at Washington University in St. Louis, treats grammar as a system to understand rather than a list to memorize, connecting sentence structure to clearer, more persuasive writing.

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Michelle
MD Baylor College of Medicine • BA Rice University
1+ Years Tutoring

Clear scientific writing demands precise grammar — misplaced modifiers and comma splices can change the meaning of a research finding entirely. Michelle brings that same exactness to grammar instruction, breaking down sentence structure, subject-verb agreement, and punctuation rules so students can self-edit with confidence rather than relying on guesswork.

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Solange
BA Harvard University
8+ Years Tutoring

Comma splices, dangling modifiers, subject-verb agreement — Solange doesn't just mark these errors but explains the underlying logic of English sentence structure so students can catch mistakes on their own. Years of intensive writing at Harvard, combined with tutoring students from elementary through college level, sharpened her ability to teach grammar as a toolkit rather than a set of arbitrary rules.

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Charles
BA Yale University
1+ Years Tutoring

Mechanical engineering reports demand precise, unambiguous writing, so Charles has developed a practical grip on grammar that goes beyond labeling parts of speech. He teaches rules like subject-verb agreement, comma usage in complex sentences, and pronoun-antecedent clarity by showing students how unclear grammar actually changes meaning. It's a straightforward, logic-based approach that tends to click for students who find traditional grammar instruction abstract.

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Justin
BA Washington University in St. Louis • Doctor of Philosophy, Computational Mathematics University of Chicago
9+ Years Tutoring

Years of academic writing through a physics and math PhD gave Justin a sharp eye for sentence structure, subject-verb agreement, and the kinds of punctuation errors that muddy otherwise clear thinking. He approaches grammar as a system of logical rules — similar to how he'd approach a math proof — which clicks especially well for students who think analytically.

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Andrew
BA University of North Texas • Doctor of Philosophy, Biomedical Engineering Vanderbilt University
6+ Years Tutoring

Andrew's PhD work in biomedical engineering means he's spent years wrestling with the kind of dense, precise academic prose where a single ambiguous clause can undermine an entire argument — and that discipline carries over when he teaches grammar. He approaches sentence structure the way a physicist approaches equations: every piece has a function, and once a student sees the function, the rule stops feeling arbitrary. Rated 4.9 by students.

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Justin
BA University of Chicago • Current Grad Student, Philosophy University of New Mexico-Main Campus
1+ Years Tutoring

Clear writing starts with understanding why a comma splice weakens an argument or how parallel structure makes a sentence land harder. Justin's philosophy training at Chicago demanded grammatical precision in every paper, and he now teaches grammar not as a set of arbitrary rules but as tools for making meaning sharper — covering everything from subject-verb agreement to modifier placement.

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Elena
MS University of Edinburgh • BA Mcgill University
1+ Years Tutoring

Comma splices, dangling modifiers, subject-verb agreement — Elena doesn't just correct these errors but explains the logic underneath them so students can catch mistakes on their own. Her McGill and Edinburgh training involved writing at an intensive academic level, and her current work designing school curricula keeps her deeply immersed in how grammar rules function in real student writing. She keeps things light and a little irreverent, which makes sentence diagramming feel less like a chore.

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James
BA Harvard University
1+ Years Tutoring

Strong grammar skills were essential for James's own SAT performance (1570 composite), and he brings that same precision to teaching sentence structure, punctuation rules, and modifier placement. He unpacks grammar as a logical system — each rule has a reason — which makes it stick better than rote memorization of comma rules ever could.

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Isabella
BA Massachusetts Institute of Technology • Current Grad Student, Operations Research Georgia Institute of Technology-Main Campus
9+ Years Tutoring

Minoring in Ancient and Medieval Studies at MIT meant Isabella spent serious time close-reading dense primary texts and writing precisely argued papers — skills that translate directly into teaching grammar. She unpacks sentence structure, punctuation logic, and agreement rules by showing students how each choice changes meaning, not just whether it "looks right."

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Henry
BA Harvard College
9+ Years Tutoring

Dangling modifiers, comma splices, subject-verb agreement across complex clauses — Henry digs into the specific grammar errors that cost students points on essays and standardized tests alike. His Harvard history training required rigorous academic writing, so he teaches grammar not as abstract rules but as tools for making sentences clearer and arguments sharper.

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Ingrid
BA Northwestern University
6+ Years Tutoring

Ingrid approaches grammar as a system with clear, learnable rules rather than a set of arbitrary corrections. She unpacks concepts like subject-verb agreement, comma splices, and parallel structure by showing students the logic behind each rule, then reinforces it through targeted sentence-level editing practice.

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Sabira
BA Johns Hopkins University
5+ Years Tutoring

Knowing that a comma splice is wrong matters less than understanding why two independent clauses need a specific kind of punctuation between them. Sabira teaches grammar rules — subject-verb agreement, pronoun reference, parallel structure — by connecting each rule to the logic of how sentences communicate meaning. Her 5.0 rating speaks to an approach that makes even dry mechanics feel intuitive.

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Asta
BA University of Chicago
1+ Years Tutoring

Having tutored ESL students in Hong Kong preparing for U.S. college admissions, Asta developed a knack for explaining English grammar rules that native speakers take for granted — subject-verb agreement, comma splices, parallel structure. She approaches grammar as a toolkit for clearer writing, connecting each rule to how it actually improves a sentence.

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Daniel
BA Brown University
10+ Years Tutoring

Editing hundreds of college and academic essays has given Daniel an unusually detailed command of English grammar — not just spotting errors, but explaining why a comma splice weakens an argument or how parallel structure makes a sentence land. Rated 5.0 by students, he breaks down rules like subject-verb agreement and modifier placement in ways that actually stick.

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Keith
BA Williams College • Juris Doctor, Prelaw Studies Cornell University
5+ Years Tutoring

Studying political science at Williams College meant writing precisely — every misplaced modifier or subject-verb disagreement weakened an argument. Keith applies that same rigor to grammar, breaking down sentence structure, punctuation rules, and usage errors so students can spot and fix them in their own writing. His 1560 SAT score speaks to the kind of command over language mechanics he brings to each session.

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Renee
BA Colgate University • Doctor of Philosophy, Spanish and Iberian Studies Princeton University
6+ Years Tutoring

Comma splices, dangling modifiers, subject-verb agreement errors — most grammar mistakes follow predictable patterns, and once a student sees the pattern, the fix becomes intuitive. Renee spent years as a Writing Consultant diagnosing exactly these issues in student papers across disciplines. Her approach treats grammar not as a set of arbitrary rules but as a toolkit for making writing clearer and more precise.

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Sherry
BA University of Chicago
10+ Years Tutoring

Linguistics training at the University of Chicago gave Sherry a deep understanding of how English grammar actually works — not just the rules, but the logic behind subject-verb agreement, parallel structure, and modifier placement. She breaks down sentence mechanics in a way that clicks for students who've been told what's wrong but never understood why. Rated 5.0 by students.

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Shelley
BA Northwestern University • Current Grad Student, Clinical Psychology Duke University
1+ Years Tutoring

Between a journalism degree and years of academic writing in a doctoral program, Shelley has internalized grammar rules to the point where she can explain why a semicolon works here but not there, or when passive voice actually strengthens a sentence. She digs into the logic behind punctuation, subject-verb agreement, and clause structure so students can self-correct instead of relying on spell-check.

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Brittney
MS Grand Valley State University • BA Princeton University
8+ Years Tutoring

Knowing the difference between a restrictive and nonrestrictive clause, or when to use a semicolon versus an em dash, changes how clearly a student can communicate any idea. Brittney's graduate work in English and her deep background in literary analysis mean she teaches grammar not as a set of arbitrary rules but as tools for precision and style. She digs into sentence-level mechanics with the same rigor she brings to essay structure.

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Emily
MS Yale University • MS Yale School of Public Health
9+ Years Tutoring

Having written and revised everything from epidemiology papers to French literary analyses across two Yale degrees, Emily developed an unusually broad sense of how grammar functions differently across genres — and where the same core mistakes (comma splices, tense shifts, pronoun fog) show up regardless of subject matter. She teaches those patterns by pulling from a student's own drafts, making corrections concrete instead of abstract. Rated 5.0 by students.

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Lauren
MS University of Chicago • BA Kent State University at Kent
7+ Years Tutoring

Comma splices, dangling modifiers, subject-verb agreement errors — these tend to persist because students learn grammar rules in isolation instead of seeing how they shape meaning. Lauren, who writes and edits across multiple subjects including French, unpacks each rule inside the context of a student's own sentences so corrections become intuitive. She holds a 5.0 client rating.

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Sung
BA Yale University
13+ Years Tutoring

Sentence structure and punctuation rules aren't arbitrary — they follow patterns as logical as any math formula. Sung unpacks grammar by teaching students to identify clause boundaries, recognize parallel structure, and diagnose comma errors systematically, skills he sharpened while coaching ACT English where grammar questions appear under strict time pressure.

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Matt
BA University of Pennsylvania
9+ Years Tutoring

Comma splices, dangling modifiers, subject-verb agreement — grammar rules are easier to remember when students understand the structural logic behind them. Matt teaches grammar as a system of patterns rather than a list of exceptions, drawing on his experience with essay editing and SAT Writing prep to show how each rule improves clarity in real writing.

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Ben
BA University of Pennsylvania
10+ Years Tutoring

Ben's mathematics background actually sharpens his grammar teaching — he approaches sentence structure the same way he'd approach an equation, where every element has a defined role and misplacing one piece changes the entire meaning. His college essays tutoring and literature work at Penn keep him immersed in real student writing, so he catches the recurring errors (comma splices, tense shifts, wobbly parallelism) that students overlook when self-editing. Rated 5.0 by students.

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Shayan
BA University at Buffalo • Current Grad Student, Pre-Health University of Pennsylvania
1+ Years Tutoring

Shayan's biology and pre-health writing at Penn requires constant precision with sentence mechanics — one dangling modifier in a lab report or personal statement can undercut the whole point. He applies that same rigor when teaching grammar, breaking down why a rule works rather than just flagging the error, so corrections stick across future writing. Rated 5.0 by students.

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Sam
PhD University of Iowa • BA Northwestern University
9+ Years Tutoring

An engineer and statistician who also teaches essay editing and literature, Sam approaches grammar as a system of logical rules rather than a list of exceptions to memorize. He digs into sentence structure, subject-verb agreement, and modifier placement with the same precision he applies to mathematical proofs — which tends to resonate with students who think analytically.

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Simon
BA University of Pennsylvania
9+ Years Tutoring

Dangling modifiers, comma splices, subject-verb agreement across long clauses — Simon digs into the specific grammar errors that cost students clarity in their writing. Rather than handing out rules to memorize, he teaches students to diagram the logic of a sentence so they can catch their own mistakes in essays, emails, and timed writing assignments.

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Brian
PhD University of California-Santa Cruz • BA California Institute of Technology
9+ Years Tutoring

Most students think of grammar as a set of arbitrary rules, but Brian approaches it the way he approaches logic problems — each rule has a function, and once you see the function, the rule stops feeling random. His background in essay editing and SAT writing prep sharpens his ability to pinpoint exactly where a sentence breaks down structurally and explain why the fix works.

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Maya
BA Yale University
6+ Years Tutoring

Comma splices, dangling modifiers, subject-verb agreement — grammar rules only stick when students understand the logic behind them instead of just memorizing corrections. Maya, a Yale-educated writer with a 34 ACT, unpacks sentence structure so students can self-edit their own work with confidence across essays, emails, and creative projects.

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Perry
BA Rice University
4+ Years Tutoring

Strong grammar isn't about memorizing comma rules in isolation — it's about understanding why a misplaced modifier changes meaning or how parallel structure makes an argument more persuasive. Perry developed this precision through years of scientific and academic writing at Rice, where ambiguity in a lab report or research paper wasn't an option. He walks through each grammar concept with real examples from students' own writing.

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Matthew
BA University
1+ Years Tutoring

Engineering coursework at Princeton demands precise, unambiguous writing — a misplaced modifier in a lab report can change the meaning of a finding. Matthew applies that same attention to detail when teaching grammar, walking through sentence structure, punctuation rules, and common agreement errors with the methodical approach of someone trained to spot mistakes in complex systems.

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Akarsh
MS Yale University • BA Yale University
9+ Years Tutoring

Scientific writing demands precise grammar — dangling modifiers, subject-verb agreement errors, and misplaced clauses can change the meaning of a research finding entirely. Akarsh's years of writing and editing lab reports and research papers through his molecular biology master's program trained him to catch exactly these kinds of structural mistakes and explain the rules behind them.

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Elena
BA Cornell University • Juris Doctor, Law University of Chicago Law School
1+ Years Tutoring

Comma splices, dangling modifiers, subject-verb agreement across complex clauses — Elena spots these errors instinctively after years of writing legal briefs and academic papers across two undergraduate majors and law school. She unpacks the logic behind each grammar rule so students internalize patterns rather than relying on memorized corrections that fall apart in new contexts.

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Nishad
BA Pennsylvania State University-Main Campus
1+ Years Tutoring

Clear, precise writing is a non-negotiable skill in medical school, and Nishad sharpened his grammar instincts through years of scientific writing and college essay work before entering Sidney Kimmel Medical College. He breaks down tricky concepts like comma splices, subject-verb agreement, and modifier placement by showing students the logic behind the rules — so corrections start to feel intuitive rather than arbitrary.

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Testimonials

Because the right Grammar tutor makes all the difference.

4.9

Average Session Rating – Based on 3.4M Learner Ratings

Worked with a Grammar Tutor

Your customer interface is A+, being your agents or your site, The tutor you found for me is perfect, no formulas or canned lectures but easy flowing lecture addressing my needs. Congratulations for a job well done.

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Julio Aranovich
Worked with a Grammar Tutor

Heejin has been very patient with me. I work a full time job sometimes even on the weekends. It has been a slow process with my Korean classes, but Heejin has been wonderful and patient.

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Angela Hussein
Worked with a Grammar Tutor

My son has had many quality tutors through this convenient service, and he can hop on at any time of day to get support for a homework assignment or test. It's very convenient and effective.

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Tara R
Worked with a Grammar Tutor

I've been working with my tutor for a few months now and the progress has been remarkable. The personalized attention and tailored lessons made all the difference compared to in-classroom learning.

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Michael Chen
Worked with a Grammar Tutor

The flexibility of scheduling combined with the quality of instruction is unmatched. I can get help exactly when I need it, whether that's late at night or early in the morning before a test.

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Priya Patel
Worked with a Grammar Tutor

My daughter went from dreading her sessions to looking forward to them. The tutor made the material engaging and built her confidence in ways I never thought possible. Highly recommend.

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Rebecca Williams

Frequently Asked Questions

Students most commonly struggle with subject-verb agreement, especially with compound subjects or collective nouns; proper comma usage in complex sentences; and distinguishing between commonly confused words like "its/it's" or "their/there/they're." Beyond mechanics, many students find it difficult to understand how grammar rules connect to sentence clarity and style—they memorize rules without seeing how they improve their writing. A tutor can help you identify which specific areas are holding back your writing and build targeted strategies to master them.

Grammar covers the technical rules of language—subject-verb agreement, punctuation, verb tenses—while style and voice involve word choice, sentence variety, and tone to create impact and personality in your writing. You can have grammatically correct sentences that are boring or unclear; conversely, understanding grammar rules gives you the foundation to break them intentionally for stylistic effect. A grammar tutor helps you master the rules first, then teaches you how to use that knowledge strategically to develop your unique voice and make your writing more engaging.

The key is understanding independent and dependent clauses—knowing when you have a complete thought versus when you need additional information. Common mistakes happen when students either connect independent clauses with a comma alone (comma splice) or break a complete thought into pieces (fragment). Tutoring focuses on teaching you to recognize clause boundaries, then practice combining sentences strategically using conjunctions, semicolons, or subordination. Once you can identify these patterns, you'll catch these errors in your own writing and develop more sophisticated, varied sentence structures.

Rather than just correcting errors, a grammar tutor walks you through why a mistake happened—whether it's a misunderstanding of the rule, careless proofreading, or confusion about a specific concept. They work with your own writing samples to show you patterns in your errors, so you learn to catch similar mistakes across all your work. This personalized feedback on your real essays is far more effective than generic grammar exercises, because you're learning rules in the context of your own voice and writing goals.

Tense shifts usually happen when you're focused on content and lose track of your timeline—especially common in narratives where you slip between past and present, or in essays where you mix past events with present analysis. The fix involves understanding why you chose a tense in the first place: past tense for historical events, present tense for analysis or current facts, and present perfect for events that connect past to present. A tutor helps you develop a proofreading strategy specifically for tense consistency, teaching you to identify your intended timeline first, then scan your draft with that timeline in mind.

Each punctuation mark serves a specific purpose: commas separate items or clauses and add pauses; semicolons join related independent clauses; colons introduce lists or explanations; and dashes create emphasis or insert additional information. Rather than memorizing rigid rules, understanding the *function* of each mark helps you use them correctly. Tutoring teaches you to think about what you're trying to do in a sentence—are you listing items, connecting related ideas, or adding emphasis?—and choose the punctuation that does that job. This approach makes punctuation feel logical rather than arbitrary.

Modifiers are words or phrases that describe other words, but they only work if they're clearly attached to what they're modifying. A misplaced modifier is in the wrong location ("I saw the deer running through the forest with binoculars"—who has the binoculars?), while a dangling modifier has no clear word to modify at all ("Running late, my coffee spilled everywhere"—did the coffee run late?). These errors confuse readers and can accidentally change your meaning. A tutor teaches you to identify what word you're trying to modify, then place the modifier right next to it, plus how to proofread your drafts specifically for these sneaky errors.

If you've mastered basic grammar, tutoring shifts focus to advanced topics like parallel structure for emphasis, subordination to show relationships between ideas, and strategic use of active versus passive voice. You'll learn how professional writers use grammar intentionally—varying sentence length for rhythm, using fragments for effect, or choosing specific verb forms to control tone. This level of grammar work directly improves your essays, arguments, and overall writing sophistication, helping you move from technically correct writing to compelling, nuanced prose.

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