English verb conjugation
COULD ALIBI

Regular verb: alibi - alibied - alibied

Affirmation

Simple form	V-ing form
I could alibi you could alibi he could alibi we could alibi you could alibi they could alibi	I could be alibiing you could be alibiing he could be alibiing we could be alibiing you could be alibiing they could be alibiing
Perfect	V-ing perfect
I could have alibied you could have alibied he could have alibied we could have alibied you could have alibied they could have alibied	I could have been alibiing you could have been alibiing he could have been alibiing we could have been alibiing you could have been alibiing they could have been alibiing

Negation

Simple form	V-ing form
I could not alibi you could not alibi he could not alibi we could not alibi you could not alibi they could not alibi	I could not be alibiing you could not be alibiing he could not be alibiing we could not be alibiing you could not be alibiing they could not be alibiing
Perfect	V-ing perfect
I could not have alibied you could not have alibied he could not have alibied we could not have alibied you could not have alibied they could not have alibied	I could not have been alibiing you could not have been alibiing he could not have been alibiing we could not have been alibiing you could not have been alibiing they could not have been alibiing

Interrogative form

Simple form	V-ing form
could I alibi? could you alibi? could he alibi? could we alibi? could you alibi? could they alibi?	could I be alibiing? could you be alibiing? could he be alibiing? could we be alibiing? could you be alibiing? could they be alibiing?
Perfect	V-ing perfect
could I have alibied? could you have alibied? could he have alibied? could we have alibied? could you have alibied? could they have alibied?	could I have been alibiing? could you have been alibiing? could he have been alibiing? could we have been alibiing? could you have been alibiing? could they have been alibiing?

Interro-negative form

Simple form	V-ing form
could I not alibi? could you not alibi? could he not alibi? could we not alibi? could you not alibi? could they not alibi?	could I not be alibiing? could you not be alibiing? could he not be alibiing? could we not be alibiing? could you not be alibiing? could they not be alibiing?
Perfect	V-ing perfect
could I not have alibied? could you not have alibied? could he not have alibied? could we not have alibied? could you not have alibied? could they not have alibied?	could I not have been alibiing? could you not have been alibiing? could he not have been alibiing? could we not have been alibiing? could you not have been alibiing? could they not have been alibiing?