English verb conjugation
CAN PASS

Regular verb: pass - passed - passed

Affirmation

Simple form	V-ing form
I can pass you can pass she can pass we can pass you can pass they can pass	I can be passing you can be passing she can be passing we can be passing you can be passing they can be passing
Perfect	V-ing perfect
I can have passed you can have passed she can have passed we can have passed you can have passed they can have passed	I can have been passing you can have been passing she can have been passing we can have been passing you can have been passing they can have been passing

Negation

Simple form	V-ing form
I cannot pass you cannot pass she cannot pass we cannot pass you cannot pass they cannot pass	I cannot be passing you cannot be passing she cannot be passing we cannot be passing you cannot be passing they cannot be passing
Perfect	V-ing perfect
I cannot have passed you cannot have passed she cannot have passed we cannot have passed you cannot have passed they cannot have passed	I cannot have been passing you cannot have been passing she cannot have been passing we cannot have been passing you cannot have been passing they cannot have been passing

Interrogative form

Simple form	V-ing form
can I pass? can you pass? can she pass? can we pass? can you pass? can they pass?	can I be passing? can you be passing? can she be passing? can we be passing? can you be passing? can they be passing?
Perfect	V-ing perfect
can I have passed? can you have passed? can she have passed? can we have passed? can you have passed? can they have passed?	can I have been passing? can you have been passing? can she have been passing? can we have been passing? can you have been passing? can they have been passing?

Interro-negative form

Simple form	V-ing form
can I not pass? can you not pass? can she not pass? can we not pass? can you not pass? can they not pass?	can I not be passing? can you not be passing? can she not be passing? can we not be passing? can you not be passing? can they not be passing?
Perfect	V-ing perfect
can I not have passed? can you not have passed? can she not have passed? can we not have passed? can you not have passed? can they not have passed?	can I not have been passing? can you not have been passing? can she not have been passing? can we not have been passing? can you not have been passing? can they not have been passing?