can pass
Regular verb: pass - passed- passed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?