Question

Difference between has + past tense, have + past tense and had + past tense​

Answer 1

Answer:

has +past :- used for single doer(the person who does the action)

For eg. he has completed his homework

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have +past tense:- used for more than 1 doers

for eg. they have completed their homework

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had +past tense :- used for the action that had already taken place for both types of doers

for eg. he had already completed his homework the day before yesterday

Answer 2

Answer:

The base form of the verb is have. The present participle is having. The past tense and past participle form is had. The present and past forms are often contracted in everyday speech, especially when have is being used as an auxiliary verb.