English verb conjugation
CAN AFTER

Regular verb: after - aftered - aftered

Affirmation

Simple form	V-ing form
I can after you can after he can after we can after you can after they can after	I can be aftering you can be aftering he can be aftering we can be aftering you can be aftering they can be aftering
Perfect	V-ing perfect
I can have aftered you can have aftered he can have aftered we can have aftered you can have aftered they can have aftered	I can have been aftering you can have been aftering he can have been aftering we can have been aftering you can have been aftering they can have been aftering

Negation

Simple form	V-ing form
I cannot after you cannot after he cannot after we cannot after you cannot after they cannot after	I cannot be aftering you cannot be aftering he cannot be aftering we cannot be aftering you cannot be aftering they cannot be aftering
Perfect	V-ing perfect
I cannot have aftered you cannot have aftered he cannot have aftered we cannot have aftered you cannot have aftered they cannot have aftered	I cannot have been aftering you cannot have been aftering he cannot have been aftering we cannot have been aftering you cannot have been aftering they cannot have been aftering

Interrogative form

Simple form	V-ing form
can I after? can you after? can he after? can we after? can you after? can they after?	can I be aftering? can you be aftering? can he be aftering? can we be aftering? can you be aftering? can they be aftering?
Perfect	V-ing perfect
can I have aftered? can you have aftered? can he have aftered? can we have aftered? can you have aftered? can they have aftered?	can I have been aftering? can you have been aftering? can he have been aftering? can we have been aftering? can you have been aftering? can they have been aftering?

Interro-negative form

Simple form	V-ing form
can I not after? can you not after? can he not after? can we not after? can you not after? can they not after?	can I not be aftering? can you not be aftering? can he not be aftering? can we not be aftering? can you not be aftering? can they not be aftering?
Perfect	V-ing perfect
can I not have aftered? can you not have aftered? can he not have aftered? can we not have aftered? can you not have aftered? can they not have aftered?	can I not have been aftering? can you not have been aftering? can he not have been aftering? can we not have been aftering? can you not have been aftering? can they not have been aftering?