can watch
Regular verb: watch - watched- watched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can watch
you can watch
she can watch
we can watch
you can watch
they can watch 	I can be watching
you can be watching
she can be watching
we can be watching
you can be watching
they can be watching	I can have watched
you can have watched
she can have watched
we can have watched
you can have watched
they can have watched	I can have been watching
you can have been watching
she can have been watching
we can have been watching
you can have been watching
they can have been watching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't watch
you can't watch
she can't watch
we can't watch
you can't watch
they can't watch 	I can't be watching
you can't be watching
she can't be watching
we can't be watching
you can't be watching
they can't be watching	I can't have watched
you can't have watched
she can't have watched
we can't have watched
you can't have watched
they can't have watched	I can't have been watching
you can't have been watching
she can't have been watching
we can't have been watching
you can't have been watching
they can't have been watching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I watch?
can you watch?
can she watch?
can we watch?
can you watch?
can they watch? 	can I be watching?
can you be watching?
can she be watching?
can we be watching?
can you be watching?
can they be watching? 	can I have watched?
can you have watched?
can she have watched?
can we have watched?
can you have watched?
can they have watched? 	can I have been watching?
can you have been watching?
can she have been watching?
can we have been watching?
can you have been watching?
can they have been watching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I watch?
can't you watch?
can't she watch?
can't we watch?
can't you watch?
can't they watch? 	can't I be watching?
can't you be watching?
can't she be watching?
can't we be watching?
can't you be watching?
can't they be watching? 	can't I have watched?
can't you have watched?
can't she have watched?
can't we have watched?
can't you have watched?
can't they have watched? 	can't I have been watching?
can't you have been watching?
can't she have been watching?
can't we have been watching?
can't you have been watching?
can't they have been watching?