What Is Subject-Verb Agreement?
Subject-verb agreement is a basic grammar rule in English. It means that the verb in a sentence must match the subject. If the subject is singular, the verb must be singular. If the subject is plural, the verb must be plural.
Think of it like a team: the subject and the verb must always work together.
Simple Examples to Get Started
- She walks to school. (singular subject = singular verb)
- They walk to school. (plural subject = plural verb)
- The dog barks every morning.
- The dogs bark every morning.
Notice how the verb changes depending on the subject. This is the core idea of subject-verb agreement.
The Key Elements of Subject-Verb Agreement in English
Let us look at the main rules you need to know.
1. Singular and Plural Subjects
A singular subject refers to one person or thing. A plural subject refers to more than one.
| Subject | Verb Form | Example |
|---|---|---|
| He / She / It | Verb + -s | He reads books. |
| I / You / We / They | Base verb | They read books. |
- The cat sleeps on the sofa.
- The cats sleep on the sofa.
- My friend likes pizza.
- My friends like pizza.
2. The Verb ‘To Be’
The verb ‘to be’ is special. It changes a lot depending on the subject. It is one of the most common verbs in English, so it is important to learn it well.
| Subject | Present form of ‘to be’ |
|---|---|
| I | am |
| He / She / It | is |
| You / We / They | are |
- I am happy.
- She is a teacher.
- We are ready.
3. The Verb ‘To Have’
The verb ‘to have’ also changes in the third person singular.
- He has a new car.
- They have a new car.
- The student has many questions.
- The students have many questions.
Why Subject-Verb Agreement Matters
You might wonder: why is this rule so important? Here are a few good reasons.
- Clarity: When the subject and verb agree, your sentence is easy to understand.
- Naturalness: Native English speakers use this rule automatically. If you follow it, your English will sound more natural.
- Avoiding mistakes: Wrong agreement is one of the most common errors made by English learners. Learning this rule early will help you a lot.
For example, saying ‘She walk to school’ sounds wrong. Saying ‘She walks to school’ sounds correct and natural.
Comparison With Other Languages
If you speak French or Spanish, you already know the idea of agreement. But English works a bit differently.
| Language | How agreement works | Example |
|---|---|---|
| French | Verbs change for each person (je parle, tu parles, il parle…) | Elle parle français. |
| Spanish | Verbs change a lot for each person (hablo, hablas, habla…) | Ella habla español. |
| English | Verbs only change in the third person singular (he/she/it + verb-s) | She speaks English. |
Good news: English is simpler than French or Spanish in this area! You only add an ‘-s’ (or ‘-es’) to the verb when the subject is he, she, or it in the present simple tense. The verb stays the same for all other subjects.
A Full Example
Let us look at a short paragraph and see subject-verb agreement in action:
‘My sister lives in London. She works at a hospital. Every morning, she takes the train to work. Her colleagues are very friendly. They have lunch together every day.’
- ‘My sister’ is singular, so we use ‘lives’ and ‘works’.
- ‘She’ is singular, so we use ‘takes’.
- ‘Her colleagues’ is plural, so we use ‘are’.
- ‘They’ is plural, so we use ‘have’.
Key Points to Remember
- The verb must always agree with the subject in number.
- For he, she, or it in the present simple, add ‘-s’ or ‘-es’ to the verb.
- The verbs ‘to be’ and ‘to have’ are irregular: learn them by heart.
- In English, verb forms change less than in French or Spanish, which makes it easier!
- Check your subject carefully before choosing your verb form.
Practice this rule every day and it will quickly become natural for you. Start with simple sentences and build up from there. You are already on the right path!
Sources
- Swan, M. (2005). Practical English Usage. Oxford University Press.
- Murphy, R. (2019). English Grammar in Use (5th edition). Cambridge University Press.
- Quirk, R., Greenbaum, S., Leech, G., and Svartvik, J. (1985). A Comprehensive Grammar of the English Language. Longman.