English verb conjugation
COULD VEND

Regular verb: vend - vended - vended

Affirmation

Simple form	V-ing form
I could vend you could vend she could vend we could vend you could vend they could vend	I could be vending you could be vending she 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 she 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 she 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 couldn't vend you couldn't vend she couldn't vend we couldn't vend you couldn't vend they couldn't vend	I couldn't be vending you couldn't be vending she couldn't be vending we couldn't be vending you couldn't be vending they couldn't be vending
Perfect	V-ing perfect
I couldn't have vended you couldn't have vended she couldn't have vended we couldn't have vended you couldn't have vended they couldn't have vended	I couldn't have been vending you couldn't have been vending she couldn't have been vending we couldn't have been vending you couldn't have been vending they couldn't have been vending

Interrogative form

Simple form	V-ing form
could I vend? could you vend? could she vend? could we vend? could you vend? could they vend?	could I be vending? could you be vending? could she 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 she 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 she 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
couldn't I vend? couldn't you vend? couldn't she vend? couldn't we vend? couldn't you vend? couldn't they vend?	couldn't I be vending? couldn't you be vending? couldn't she be vending? couldn't we be vending? couldn't you be vending? couldn't they be vending?
Perfect	V-ing perfect
couldn't I have vended? couldn't you have vended? couldn't she have vended? couldn't we have vended? couldn't you have vended? couldn't they have vended?	couldn't I have been vending? couldn't you have been vending? couldn't she have been vending? couldn't we have been vending? couldn't you have been vending? couldn't they have been vending?