Common Grammar Mistakes
Spot and fix errors like run-ons, dangling modifiers and pronoun confusion.
About this topic
Frequent errors: run-on sentences and comma splices; sentence fragments; subject–verb disagreement; pronoun confusion (unclear antecedents, I/me, who/whom); dangling and misplaced modifiers ("Walking down the street, the trees were beautiful"); inconsistent tense; confusing homophones (their/there/they're); and apostrophe misuse. Fixing these makes your meaning clearer and your work more credible.
Each error has a reliable remedy. A run-on can be repaired with a period, a semicolon or a conjunction. A fragment needs a subject and a finite verb added or should be joined to a neighbouring sentence. For pronoun case, remove the other person from the phrase and see what sounds right. For modifiers, put the described word directly next to the modifier.
Worked example: the sentence "Me and him went to the park we played football" has a wrong pronoun case and a run-on. Corrected: "He and I went to the park, and we played football." The version "Walking down the street, the trees were beautiful" suggests the trees were walking; rewrite as "Walking down the street, I admired the beautiful trees."
The best strategy is to proofread several times, each time for one type of mistake, and to read aloud or backwards sentence by sentence. Keep a record of your personal repeat errors. Do not rely on grammar software alone, because it can miss context and sometimes suggests wrong fixes.
Key ideas
- Proofread aloud
- Check subject–verb agreement
- Watch your/you're and there/their
Quick check
Use cases: where Common Grammar Mistakes helps
- Homework: review the key idea behind Common Grammar Mistakes before you start a problem set.
- Exam revision: use the quick check to test whether you can recall Common Grammar Mistakes without notes.
- Visual learning: play with the interactive lab to see how Common Grammar Mistakes changes when you adjust its inputs.
- Teaching a friend: explain Common Grammar Mistakes in your own words, then compare your version with the key ideas.
Strong reading and writing are needed in every subject, job and exam.
Frequently asked questions
What is Common Grammar Mistakes?
Spot and fix errors like run-ons, dangling modifiers and pronoun confusion.
What will I learn in Common Grammar Mistakes?
Proofread aloud. Check subject–verb agreement. Watch your/you're and there/their.
Is Common Grammar Mistakes part of English?
Yes. It is one of 60 English topics on LearnViz HighSchoolEdu, with 3 key ideas, a live animation and a quick check.
Does the Common Grammar Mistakes lab work on a phone or tablet?
Yes. The animation resizes to fit your screen and supports touch, so you can drag, tap and slide with your finger.
How should I study Common Grammar Mistakes?
Read the summary and key ideas first, play with the interactive lab to see the idea in motion, then answer the quick check. If you get a question wrong, go back to the key idea it tests.
Do I need an account, and is my progress saved?
No account is needed. Marking a topic as learned is saved in your own browser, so it stays on that device and is not sent to a server.