English verb conjugation
CAN VEND

Regular verb: vend - vended - vended

Affirmation

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

Interrogative form

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