Present Simple Tense:
I play chess.
I don't play chess.
Do I play chess?
Present Continuous Tense:
He is watching TV now.
He is not washing TV now.
Is he washing TV now?
Present Perfect Tense:
I have finished my homework.
I have not finished your homework.
Have i finished my homework?
Present Simple Tense:
I play chess.
I don't play chess.
Do I play chess?
Present Continuous Tense:
He is watching TV now.
He is not washing TV now.
Is he washing TV now?
Present Perfect Tense:
I have finished my homework.
I have not finished your homework.
Have i finished my homework?