can touch
Regular verb: touch - touched- touched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can touch
you can touch
she can touch
we can touch
you can touch
they can touch 	I can be touching
you can be touching
she can be touching
we can be touching
you can be touching
they can be touching	I can have touched
you can have touched
she can have touched
we can have touched
you can have touched
they can have touched	I can have been touching
you can have been touching
she can have been touching
we can have been touching
you can have been touching
they can have been touching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't touch
you can't touch
she can't touch
we can't touch
you can't touch
they can't touch 	I can't be touching
you can't be touching
she can't be touching
we can't be touching
you can't be touching
they can't be touching	I can't have touched
you can't have touched
she can't have touched
we can't have touched
you can't have touched
they can't have touched	I can't have been touching
you can't have been touching
she can't have been touching
we can't have been touching
you can't have been touching
they can't have been touching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I touch?
can you touch?
can she touch?
can we touch?
can you touch?
can they touch? 	can I be touching?
can you be touching?
can she be touching?
can we be touching?
can you be touching?
can they be touching? 	can I have touched?
can you have touched?
can she have touched?
can we have touched?
can you have touched?
can they have touched? 	can I have been touching?
can you have been touching?
can she have been touching?
can we have been touching?
can you have been touching?
can they have been touching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I touch?
can't you touch?
can't she touch?
can't we touch?
can't you touch?
can't they touch? 	can't I be touching?
can't you be touching?
can't she be touching?
can't we be touching?
can't you be touching?
can't they be touching? 	can't I have touched?
can't you have touched?
can't she have touched?
can't we have touched?
can't you have touched?
can't they have touched? 	can't I have been touching?
can't you have been touching?
can't she have been touching?
can't we have been touching?
can't you have been touching?
can't they have been touching?