Present perfect:
I have done my homework already.
He have not finished his homework yet.
I have never met such a nice person.
Present simple:
I go to school every morning.
I usualy drink tea after lunch.
She works as a shop assistant.
Present continuous:
I am listening to music now.
He is watching TV right now.
Peter is playin football now.
Past simple:
I saw him yesterday.
I just finished my homework.
I visited my grandma last week.
Past continuous:
I was playing tennis when he called me.
She was dancing yesterday at 5 o'clock.
We were watching the film when he came.