English verb conjugation
CAN VEND

Regular verb: vend - vended - vended

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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