English verb conjugation
COULD OVEREXTEND

Regular verb: overextend - overextended - overextended

Affirmation

Simple form	V-ing form
I could overextend you could overextend he could overextend we could overextend you could overextend they could overextend	I could be overextending you could be overextending he could be overextending we could be overextending you could be overextending they could be overextending
Perfect	V-ing perfect
I could have overextended you could have overextended he could have overextended we could have overextended you could have overextended they could have overextended	I could have been overextending you could have been overextending he could have been overextending we could have been overextending you could have been overextending they could have been overextending

Negation

Simple form	V-ing form
I couldn't overextend you couldn't overextend he couldn't overextend we couldn't overextend you couldn't overextend they couldn't overextend	I couldn't be overextending you couldn't be overextending he couldn't be overextending we couldn't be overextending you couldn't be overextending they couldn't be overextending
Perfect	V-ing perfect
I couldn't have overextended you couldn't have overextended he couldn't have overextended we couldn't have overextended you couldn't have overextended they couldn't have overextended	I couldn't have been overextending you couldn't have been overextending he couldn't have been overextending we couldn't have been overextending you couldn't have been overextending they couldn't have been overextending

Interrogative form

Simple form	V-ing form
could I overextend? could you overextend? could he overextend? could we overextend? could you overextend? could they overextend?	could I be overextending? could you be overextending? could he be overextending? could we be overextending? could you be overextending? could they be overextending?
Perfect	V-ing perfect
could I have overextended? could you have overextended? could he have overextended? could we have overextended? could you have overextended? could they have overextended?	could I have been overextending? could you have been overextending? could he have been overextending? could we have been overextending? could you have been overextending? could they have been overextending?

Interro-negative form

Simple form	V-ing form
couldn't I overextend? couldn't you overextend? couldn't he overextend? couldn't we overextend? couldn't you overextend? couldn't they overextend?	couldn't I be overextending? couldn't you be overextending? couldn't he be overextending? couldn't we be overextending? couldn't you be overextending? couldn't they be overextending?
Perfect	V-ing perfect
couldn't I have overextended? couldn't you have overextended? couldn't he have overextended? couldn't we have overextended? couldn't you have overextended? couldn't they have overextended?	couldn't I have been overextending? couldn't you have been overextending? couldn't he have been overextending? couldn't we have been overextending? couldn't you have been overextending? couldn't they have been overextending?