English grammar quiz - usage of Does, Do, and Did

Free English grammar MCQ test on the usage of do, does and did. Check your English grammar proficiency by attaining a series of MCQ tests on varied grammatical topics. This free online English grammar test is designed to check your grammatical proficiency in the usage of do, does, and did.

Rules for using do, does, and did

1. Do, Does, and Did are auxiliary verbs (helping verbs) i.e. they help the main verb in the sentence.

2. Do, and does are used in the present indefinite tense.

3. whereas, did is used in past indefinite tense.

4. Moreover, if the subject in the present indefinite tense is singular, then does is used as an auxiliary verb.

5. And if the subject in the present indefinite tense is plural, then do is used as an auxiliary verb.

6. With the first and second persons like - I, We, and You, - we use do (even if 'I' is singular we use 'do' as a helping verb with it). Also, the 'you' is singular and plural. i.e. 'you' is used for a person that can be a single person or can be a group of persons. An exception to this rule is 'they'. Since 'they' is third person but since it is plural, we use 'do' with 'they'.

7. With other third person like - he, she, and it, - we use does (since they all are singular).

8. Did, on the other hand, is the past tense of do. Did is used in the past indefinite tense, irrespective of the subject being singular or plural (i.e. did is used in singular as well as plural subjects).