Table of Contents
Grammar and Sentence Correction
Grammar and sentence correction involves identifying and fixing errors in sentence structure, word forms, agreement, tense, usage, and grammatical relationships.
The objective is not merely to memorize rules. Effective correction requires understanding why a sentence is incorrect or unclear.
1. Subject–Verb Agreement
The verb must normally agree with its subject in number and person.
Incorrect:
The list of items are on the table.
Correct:
The list of items is on the table.
The subject is list, not items.
2. Agreement with Compound Subjects
Two subjects joined by and normally take a plural verb.
Ali and Ahmed are students.
But a single combined idea can sometimes take a singular verb.
Bread and butter is my usual breakfast.
The intended meaning determines the construction.
3. Agreement with Indefinite Pronouns
Some indefinite pronouns are singular:
Everyone is ready.
Some are plural:
Many are absent.
Some can be singular or plural depending on the following noun:
Some of the water is dirty.
Some of the students are absent.
4. Pronoun Errors
Pronouns must have clear references and appropriate forms.
Incorrect:
When Ahmed spoke to Bilal, he was angry.
Who was angry?
A clearer version:
Ahmed was angry when he spoke to Bilal.
Pronoun case also matters:
She and I went to the office.
Not:
Her and me went to the office.
But:
The manager spoke to her and me.
5. Verb Tense
Verb tense should accurately express the relationship between actions and time.
Incorrect:
Yesterday, I go to the market.
Correct:
Yesterday, I went to the market.
Tense consistency is also important:
He entered the room and sits down.
Better:
He entered the room and sat down.
However, changing tense can be correct when the meaning requires it:
He entered the room and says that he needs help.
This may occur in certain narrative or reporting contexts. Correction therefore requires attention to context rather than mechanical replacement.
6. Articles
Articles are frequent sources of errors.
Incorrect:
He is a honest man.
Correct:
He is an honest man.
The choice between a and an depends on the sound that follows.
Compare:
a university
an umbrella
The initial sound of university is /j/, while umbrella begins with a vowel sound.
7. Prepositions
Prepositions often depend on established usage.
Examples:
interested in
responsible for
depend on
belong to
good at
Incorrect:
He is interested on history.
Correct:
He is interested in history.
Some prepositions vary according to meaning and regional usage, so context matters.
8. Adjective and Adverb Errors
Adjectives generally modify nouns or function as complements.
She is a careful driver.
Adverbs commonly modify verbs, adjectives, other adverbs, or entire clauses.
She drives carefully.
Incorrect:
She drives careful.
Correct:
She drives carefully.
9. Comparison
Comparative structures should be grammatically complete and logically appropriate.
Incorrect:
This book is more better than that one.
Correct:
This book is better than that one.
Also:
The two plans are different from each other.
Comparisons should compare equivalent things.
Incorrect:
The salary of a teacher is lower than an engineer.
This compares a salary with a person.
Better:
The salary of a teacher is lower than that of an engineer.
10. Parallel Structure
Elements joined together should normally have matching grammatical forms.
Incorrect:
She likes reading, writing and to swim.
Better:
She likes reading, writing and swimming.
11. Sentence Fragments
A fragment lacks a required part of a complete sentence.
Fragment:
Because the weather was bad.
Complete:
Because the weather was bad, the match was cancelled.
However, fragments can sometimes be deliberately used in informal or literary writing. Correction depends on context.
12. Run-On Sentences
A run-on sentence improperly joins independent clauses.
Incorrect:
The meeting ended we went home.
Correct:
The meeting ended, and we went home.
Or:
The meeting ended. We went home.
13. Comma Splices
A comma alone should not normally join two independent clauses.
Incorrect:
The road was closed, we took another route.
Correct:
The road was closed, so we took another route.
Or:
The road was closed; we took another route.
14. Modifier Problems
A modifier should be placed near the word it modifies.
Unclear:
She almost drove her children to school every day.
This may suggest she nearly drove them, rather than that she drove them on almost every day.
Clearer:
She drove her children to school almost every day.
15. Correction Requires Meaning
Consider:
I saw the man with a telescope.
This can mean either:
- I used a telescope to see the man.
- I saw a man who had a telescope.
Grammar alone cannot always resolve ambiguity.
A Useful Correction Method
When correcting a sentence, check it in this order:
- Find the main subject and verb.
- Check subject–verb agreement.
- Check tense and aspect.
- Check pronouns and their references.
- Check articles and determiners.
- Check prepositions.
- Check modifiers.
- Check parallel structure.
- Check sentence boundaries.
- Check punctuation and word choice.
- Read the corrected sentence for meaning.
The best correction is not always the shortest one. It is the one that accurately expresses the intended meaning in appropriate English.