English verb conjugation
COULD STATE

Regular verb: state - stated - stated

Affirmation

Simple form	V-ing form
I could state you could state she could state we could state you could state they could state	I could be stating you could be stating she could be stating we could be stating you could be stating they could be stating
Perfect	V-ing perfect
I could have stated you could have stated she could have stated we could have stated you could have stated they could have stated	I could have been stating you could have been stating she could have been stating we could have been stating you could have been stating they could have been stating

Negation

Simple form	V-ing form
I could not state you could not state she could not state we could not state you could not state they could not state	I could not be stating you could not be stating she could not be stating we could not be stating you could not be stating they could not be stating
Perfect	V-ing perfect
I could not have stated you could not have stated she could not have stated we could not have stated you could not have stated they could not have stated	I could not have been stating you could not have been stating she could not have been stating we could not have been stating you could not have been stating they could not have been stating

Interrogative form

Simple form	V-ing form
could I state? could you state? could she state? could we state? could you state? could they state?	could I be stating? could you be stating? could she be stating? could we be stating? could you be stating? could they be stating?
Perfect	V-ing perfect
could I have stated? could you have stated? could she have stated? could we have stated? could you have stated? could they have stated?	could I have been stating? could you have been stating? could she have been stating? could we have been stating? could you have been stating? could they have been stating?

Interro-negative form

Simple form	V-ing form
could I not state? could you not state? could she not state? could we not state? could you not state? could they not state?	could I not be stating? could you not be stating? could she not be stating? could we not be stating? could you not be stating? could they not be stating?
Perfect	V-ing perfect
could I not have stated? could you not have stated? could she not have stated? could we not have stated? could you not have stated? could they not have stated?	could I not have been stating? could you not have been stating? could she not have been stating? could we not have been stating? could you not have been stating? could they not have been stating?