I can pass you can pass he can pass we can pass you can pass they can pass
V-ing form
I can be passing you can be passing he can be passing we can be passing you can be passing they can be passing
Perfect
I can have passed you can have passed he can have passed we can have passed you can have passed they can have passed
V-ing perfect
I can have been passing you can have been passing he can have been passing we can have been passing you can have been passing they can have been passing
Negation
Simple form
I can't pass you can't pass he can't pass we can't pass you can't pass they can't pass
V-ing form
I can't be passing you can't be passing he can't be passing we can't be passing you can't be passing they can't be passing
Perfect
I can't have passed you can't have passed he can't have passed we can't have passed you can't have passed they can't have passed
V-ing perfect
I can't have been passing you can't have been passing he can't have been passing we can't have been passing you can't have been passing they can't have been passing
Interrogative form
Simple form
can I pass? can you pass? can he pass? can we pass? can you pass? can they pass?
V-ing form
can I be passing? can you be passing? can he be passing? can we be passing? can you be passing? can they be passing?
Perfect
can I have passed? can you have passed? can he have passed? can we have passed? can you have passed? can they have passed?
V-ing perfect
can I have been passing? can you have been passing? can he have been passing? can we have been passing? can you have been passing? can they have been passing?
Interro-negative form
Simple form
can't I pass? can't you pass? can't he pass? can't we pass? can't you pass? can't they pass?
V-ing form
can't I be passing? can't you be passing? can't he be passing? can't we be passing? can't you be passing? can't they be passing?
Perfect
can't I have passed? can't you have passed? can't he have passed? can't we have passed? can't you have passed? can't they have passed?
V-ing perfect
can't I have been passing? can't you have been passing? can't he have been passing? can't we have been passing? can't you have been passing? can't they have been passing?