I could thrust you could thrust he could thrust we could thrust you could thrust they could thrust
V-ing form
I could be thrusting you could be thrusting he could be thrusting we could be thrusting you could be thrusting they could be thrusting
Perfect
I could have thrust you could have thrust he could have thrust we could have thrust you could have thrust they could have thrust
V-ing perfect
I could have been thrusting you could have been thrusting he could have been thrusting we could have been thrusting you could have been thrusting they could have been thrusting
Negation
Simple form
I could not thrust you could not thrust he could not thrust we could not thrust you could not thrust they could not thrust
V-ing form
I could not be thrusting you could not be thrusting he could not be thrusting we could not be thrusting you could not be thrusting they could not be thrusting
Perfect
I could not have thrust you could not have thrust he could not have thrust we could not have thrust you could not have thrust they could not have thrust
V-ing perfect
I could not have been thrusting you could not have been thrusting he could not have been thrusting we could not have been thrusting you could not have been thrusting they could not have been thrusting
Interrogative form
Simple form
could I thrust? could you thrust? could he thrust? could we thrust? could you thrust? could they thrust?
V-ing form
could I be thrusting? could you be thrusting? could he be thrusting? could we be thrusting? could you be thrusting? could they be thrusting?
Perfect
could I have thrust? could you have thrust? could he have thrust? could we have thrust? could you have thrust? could they have thrust?
V-ing perfect
could I have been thrusting? could you have been thrusting? could he have been thrusting? could we have been thrusting? could you have been thrusting? could they have been thrusting?
Interro-negative form
Simple form
could I not thrust? could you not thrust? could he not thrust? could we not thrust? could you not thrust? could they not thrust?
V-ing form
could I not be thrusting? could you not be thrusting? could he not be thrusting? could we not be thrusting? could you not be thrusting? could they not be thrusting?
Perfect
could I not have thrust? could you not have thrust? could he not have thrust? could we not have thrust? could you not have thrust? could they not have thrust?
V-ing perfect
could I not have been thrusting? could you not have been thrusting? could he not have been thrusting? could we not have been thrusting? could you not have been thrusting? could they not have been thrusting?