Subject-verb agreement is one of the most important aspects of English grammar. It refers to the correct relationship between the subject and the verb in a sentence. When it comes to using „do“ or „does“ in subject-verb agreement, it can be a bit tricky, but with a little practice, it becomes easier.
First, let`s understand the basic difference between „do“ and „does.“ „Do“ is used with plural subjects, while „does“ is used with singular subjects. For example, „I do my homework“ and „He does his homework.“ In the first sentence, the subject is „I,“ which is singular, but we use „do“ because „homework“ is plural. In the second sentence, the subject is „he,“ which is singular, and we use „does“ because „homework“ is also singular.
Here are some rules you need to remember when it comes to using „do“ or „does“ in subject-verb agreement:
1. Singular subjects require „does.“ For example:
– She does not like coffee.
– The cat does not like water.
2. Plural subjects require „do.“ For example:
– They do not like spicy food.
– The birds do not fly at night.
3. The verb must agree with the subject. For example:
– He does his homework every day.
– They do their homework every day.
4. Use „do“ when the subject is „I“ or „you.“ For example:
– I do my best at work.
– You do not have to come with us.
5. Use „does“ when the subject is „he,“ „she,“ or „it.“ For example:
– She does her job well.
– The car does not start.
6. When using negative sentences, the word „not“ comes after the auxiliary verb („do“ or „does“). For example:
– He does not like spicy food.
– They do not drink coffee.
7. In questions, „do“ is used with plural subjects and „does“ is used with singular subjects. For example:
– Do they like pizza?
– Does she have a car?
In conclusion, subject-verb agreement can be tricky, but understanding the rules of when to use „do“ or „does“ is crucial in constructing grammatically correct sentences. By paying attention to the subject`s number and using the appropriate auxiliary verb, you can avoid common errors and improve your writing.