present continious: to be+V4;
present simple:V1;
present perfect:has/have+V3;
present perfect continious:has/have been+V4
present continios: is/are+Ving
I is eating meat.
They are playing football.
Present Simple: V+s (when you, he, she,it)
I eat meat.
He eats meat.
Present Perfect: Have/has+ V3
I have eaten meat.
He has eaten meat.
Present Perfect Countinios: Have/has+been + Ving
I have been eating meat.
He has been eating meat.
