I could marinate you could marinate she could marinate we could marinate you could marinate they could marinate
V-ing form
I could be marinating you could be marinating she could be marinating we could be marinating you could be marinating they could be marinating
Perfect
I could have marinated you could have marinated she could have marinated we could have marinated you could have marinated they could have marinated
V-ing perfect
I could have been marinating you could have been marinating she could have been marinating we could have been marinating you could have been marinating they could have been marinating
Negation
Simple form
I could not marinate you could not marinate she could not marinate we could not marinate you could not marinate they could not marinate
V-ing form
I could not be marinating you could not be marinating she could not be marinating we could not be marinating you could not be marinating they could not be marinating
Perfect
I could not have marinated you could not have marinated she could not have marinated we could not have marinated you could not have marinated they could not have marinated
V-ing perfect
I could not have been marinating you could not have been marinating she could not have been marinating we could not have been marinating you could not have been marinating they could not have been marinating
Interrogative form
Simple form
could I marinate? could you marinate? could she marinate? could we marinate? could you marinate? could they marinate?
V-ing form
could I be marinating? could you be marinating? could she be marinating? could we be marinating? could you be marinating? could they be marinating?
Perfect
could I have marinated? could you have marinated? could she have marinated? could we have marinated? could you have marinated? could they have marinated?
V-ing perfect
could I have been marinating? could you have been marinating? could she have been marinating? could we have been marinating? could you have been marinating? could they have been marinating?
Interro-negative form
Simple form
could I not marinate? could you not marinate? could she not marinate? could we not marinate? could you not marinate? could they not marinate?
V-ing form
could I not be marinating? could you not be marinating? could she not be marinating? could we not be marinating? could you not be marinating? could they not be marinating?
Perfect
could I not have marinated? could you not have marinated? could she not have marinated? could we not have marinated? could you not have marinated? could they not have marinated?
V-ing perfect
could I not have been marinating? could you not have been marinating? could she not have been marinating? could we not have been marinating? could you not have been marinating? could they not have been marinating?