English verb conjugation
COULD RETIE

Regular verb: retie - retied - retied

Affirmation

Simple form	V-ing form
I could retie you could retie she could retie we could retie you could retie they could retie	I could be retying you could be retying she could be retying we could be retying you could be retying they could be retying
Perfect	V-ing perfect
I could have retied you could have retied she could have retied we could have retied you could have retied they could have retied	I could have been retying you could have been retying she could have been retying we could have been retying you could have been retying they could have been retying

Negation

Simple form	V-ing form
I could not retie you could not retie she could not retie we could not retie you could not retie they could not retie	I could not be retying you could not be retying she could not be retying we could not be retying you could not be retying they could not be retying
Perfect	V-ing perfect
I could not have retied you could not have retied she could not have retied we could not have retied you could not have retied they could not have retied	I could not have been retying you could not have been retying she could not have been retying we could not have been retying you could not have been retying they could not have been retying

Interrogative form

Simple form	V-ing form
could I retie? could you retie? could she retie? could we retie? could you retie? could they retie?	could I be retying? could you be retying? could she be retying? could we be retying? could you be retying? could they be retying?
Perfect	V-ing perfect
could I have retied? could you have retied? could she have retied? could we have retied? could you have retied? could they have retied?	could I have been retying? could you have been retying? could she have been retying? could we have been retying? could you have been retying? could they have been retying?

Interro-negative form

Simple form	V-ing form
could I not retie? could you not retie? could she not retie? could we not retie? could you not retie? could they not retie?	could I not be retying? could you not be retying? could she not be retying? could we not be retying? could you not be retying? could they not be retying?
Perfect	V-ing perfect
could I not have retied? could you not have retied? could she not have retied? could we not have retied? could you not have retied? could they not have retied?	could I not have been retying? could you not have been retying? could she not have been retying? could we not have been retying? could you not have been retying? could they not have been retying?