English verb conjugation
COULD COEXTEND

Regular verb: coextend - coextended - coextended

Affirmation

Simple form	V-ing form
I could coextend you could coextend he could coextend we could coextend you could coextend they could coextend	I could be coextending you could be coextending he 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 he 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 he 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 he 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 he 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 he 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 he 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 he coextend? could we coextend? could you coextend? could they coextend?	could I be coextending? could you be coextending? could he 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 he 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 he 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 he 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 he 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 he 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 he not have been coextending? could we not have been coextending? could you not have been coextending? could they not have been coextending?