English verb conjugation
COULD COEXTEND

Regular verb: coextend - coextended - coextended

Affirmation

Simple form	V-ing form
I could coextend you could coextend she could coextend we could coextend you could coextend they could coextend	I could be coextending you could be coextending she could be coextending we could be coextending you could be coextending they could be coextending
Perfect	V-ing perfect
I could have coextended you could have coextended she could have coextended we could have coextended you could have coextended they could have coextended	I could have been coextending you could have been coextending she could have been coextending we could have been coextending you could have been coextending they could have been coextending

Negation

Simple form	V-ing form
I could not coextend you could not coextend she could not coextend we could not coextend you could not coextend they could not coextend	I could not be coextending you could not be coextending she could not be coextending we could not be coextending you could not be coextending they could not be coextending
Perfect	V-ing perfect
I could not have coextended you could not have coextended she could not have coextended we could not have coextended you could not have coextended they could not have coextended	I could not have been coextending you could not have been coextending she could not have been coextending we could not have been coextending you could not have been coextending they could not have been coextending

Interrogative form

Simple form	V-ing form
could I coextend? could you coextend? could she coextend? could we coextend? could you coextend? could they coextend?	could I be coextending? could you be coextending? could she be coextending? could we be coextending? could you be coextending? could they be coextending?
Perfect	V-ing perfect
could I have coextended? could you have coextended? could she have coextended? could we have coextended? could you have coextended? could they have coextended?	could I have been coextending? could you have been coextending? could she have been coextending? could we have been coextending? could you have been coextending? could they have been coextending?

Interro-negative form

Simple form	V-ing form
could I not coextend? could you not coextend? could she not coextend? could we not coextend? could you not coextend? could they not coextend?	could I not be coextending? could you not be coextending? could she not be coextending? could we not be coextending? could you not be coextending? could they not be coextending?
Perfect	V-ing perfect
could I not have coextended? could you not have coextended? could she not have coextended? could we not have coextended? could you not have coextended? could they not have coextended?	could I not have been coextending? could you not have been coextending? could she not have been coextending? could we not have been coextending? could you not have been coextending? could they not have been coextending?