English verb conjugation
COULD VEND

Regular verb: vend - vended - vended

Affirmation

Simple form	V-ing form
I could vend you could vend he could vend we could vend you could vend they could vend	I could be vending you could be vending he could be vending we could be vending you could be vending they could be vending
Perfect	V-ing perfect
I could have vended you could have vended he could have vended we could have vended you could have vended they could have vended	I could have been vending you could have been vending he could have been vending we could have been vending you could have been vending they could have been vending

Negation

Simple form	V-ing form
I could not vend you could not vend he could not vend we could not vend you could not vend they could not vend	I could not be vending you could not be vending he could not be vending we could not be vending you could not be vending they could not be vending
Perfect	V-ing perfect
I could not have vended you could not have vended he could not have vended we could not have vended you could not have vended they could not have vended	I could not have been vending you could not have been vending he could not have been vending we could not have been vending you could not have been vending they could not have been vending

Interrogative form

Simple form	V-ing form
could I vend? could you vend? could he vend? could we vend? could you vend? could they vend?	could I be vending? could you be vending? could he be vending? could we be vending? could you be vending? could they be vending?
Perfect	V-ing perfect
could I have vended? could you have vended? could he have vended? could we have vended? could you have vended? could they have vended?	could I have been vending? could you have been vending? could he have been vending? could we have been vending? could you have been vending? could they have been vending?

Interro-negative form

Simple form	V-ing form
could I not vend? could you not vend? could he not vend? could we not vend? could you not vend? could they not vend?	could I not be vending? could you not be vending? could he not be vending? could we not be vending? could you not be vending? could they not be vending?
Perfect	V-ing perfect
could I not have vended? could you not have vended? could he not have vended? could we not have vended? could you not have vended? could they not have vended?	could I not have been vending? could you not have been vending? could he not have been vending? could we not have been vending? could you not have been vending? could they not have been vending?