can after
Regular verb: after - aftered- aftered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I can't after
you can't after
he can't after
we can't after
you can't after
they can't after 	I can't be aftering
you can't be aftering
he can't be aftering
we can't be aftering
you can't be aftering
they can't be aftering	I can't have aftered
you can't have aftered
he can't have aftered
we can't have aftered
you can't have aftered
they can't have aftered	I can't have been aftering
you can't have been aftering
he can't have been aftering
we can't have been aftering
you can't have been aftering
they can't have been aftering	

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