can nap
Regular verb: nap - napped- napped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can nap
you can nap
he can nap
we can nap
you can nap
they can nap 	I can be napping
you can be napping
he can be napping
we can be napping
you can be napping
they can be napping	I can have napped
you can have napped
he can have napped
we can have napped
you can have napped
they can have napped	I can have been napping
you can have been napping
he can have been napping
we can have been napping
you can have been napping
they can have been napping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't nap
you can't nap
he can't nap
we can't nap
you can't nap
they can't nap 	I can't be napping
you can't be napping
he can't be napping
we can't be napping
you can't be napping
they can't be napping	I can't have napped
you can't have napped
he can't have napped
we can't have napped
you can't have napped
they can't have napped	I can't have been napping
you can't have been napping
he can't have been napping
we can't have been napping
you can't have been napping
they can't have been napping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I nap?
can you nap?
can he nap?
can we nap?
can you nap?
can they nap? 	can I be napping?
can you be napping?
can he be napping?
can we be napping?
can you be napping?
can they be napping? 	can I have napped?
can you have napped?
can he have napped?
can we have napped?
can you have napped?
can they have napped? 	can I have been napping?
can you have been napping?
can he have been napping?
can we have been napping?
can you have been napping?
can they have been napping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I nap?
can't you nap?
can't he nap?
can't we nap?
can't you nap?
can't they nap? 	can't I be napping?
can't you be napping?
can't he be napping?
can't we be napping?
can't you be napping?
can't they be napping? 	can't I have napped?
can't you have napped?
can't he have napped?
can't we have napped?
can't you have napped?
can't they have napped? 	can't I have been napping?
can't you have been napping?
can't he have been napping?
can't we have been napping?
can't you have been napping?
can't they have been napping?