English verb conjugation
COULD END END

Regular verb: end end - end ended - end ended

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I could end end you could end end she could end end we could end end you could end end they could end end	I could be end ending you could be end ending she could be end ending we could be end ending you could be end ending they could be end ending
Perfect	V-ing perfect
I could have end ended you could have end ended she could have end ended we could have end ended you could have end ended they could have end ended	I could have been end ending you could have been end ending she could have been end ending we could have been end ending you could have been end ending they could have been end ending

Negation

Simple form	V-ing form
I could not end end you could not end end she could not end end we could not end end you could not end end they could not end end	I could not be end ending you could not be end ending she could not be end ending we could not be end ending you could not be end ending they could not be end ending
Perfect	V-ing perfect
I could not have end ended you could not have end ended she could not have end ended we could not have end ended you could not have end ended they could not have end ended	I could not have been end ending you could not have been end ending she could not have been end ending we could not have been end ending you could not have been end ending they could not have been end ending

Interrogative form

Simple form	V-ing form
could I end end? could you end end? could she end end? could we end end? could you end end? could they end end?	could I be end ending? could you be end ending? could she be end ending? could we be end ending? could you be end ending? could they be end ending?
Perfect	V-ing perfect
could I have end ended? could you have end ended? could she have end ended? could we have end ended? could you have end ended? could they have end ended?	could I have been end ending? could you have been end ending? could she have been end ending? could we have been end ending? could you have been end ending? could they have been end ending?

Interro-negative form

Simple form	V-ing form
could I not end end? could you not end end? could she not end end? could we not end end? could you not end end? could they not end end?	could I not be end ending? could you not be end ending? could she not be end ending? could we not be end ending? could you not be end ending? could they not be end ending?
Perfect	V-ing perfect
could I not have end ended? could you not have end ended? could she not have end ended? could we not have end ended? could you not have end ended? could they not have end ended?	could I not have been end ending? could you not have been end ending? could she not have been end ending? could we not have been end ending? could you not have been end ending? could they not have been end ending?