The word “Tense” denotes the form of a verb that shows the time at which the action happened.
Example: Ria goes to school
The word “goes” in the above sentence is a verb and it denotes present tense and refers to the present time.
I am playing.
I have played.
I have been playing.
I was playing.
I had played.
I had been playing.
I shall play.
I shall be playing.
I shall have played.
I shall have been playing.
Plain infinitive but -s or -es are added to bare infinitives
I play basketball every week.
Adding present participle (verb + ing) to the present forms of the auxiliary
Am/is/are + present participle
I am playing basketball now.
Have/ has + past participle
Be verb + ed/en
I have just played basketball.
Have/ has + present participle (verb+ ing)
I have been playing basketball for 3 hours.
The past tense form of the verb is used.
I played basketball yesterday.
Was/were + present participle (verb + ing)
I was playing basketball the whole evening.
Had+ past participle
I had played basketball before Mary came.
Had+ been+ present participle
I had been playing basketball when Mary came.
‘shall’ or ‘will’ is used with the base form of the verb.
I will play basketball next week.
Shall/ will + be + present participle
I will be playing basketball next Saturday.
Shall/will + have+ past participle
I will have played basketball by tomorrow.
Shall/will + have+ been+ present participle
I will have been playing basketball.