Present simple
I sing
You sing
He/she sing
We sing
You sing
They sing
Present continous
I am singing
You are singing
He/she is singing
We are singing
You are singing
They are singing
P.P.S:
I have sung
You have sung
He/she has sung
We have sung
You have sung
They have sung
P.P.C
I have been singing
You have been singing
He/she has been singing
We have been singing
You have been singing
They have been singing