can punch
Regular verb: punch - punched- punched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can punch
you can punch
she can punch
we can punch
you can punch
they can punch 	I can be punching
you can be punching
she can be punching
we can be punching
you can be punching
they can be punching	I can have punched
you can have punched
she can have punched
we can have punched
you can have punched
they can have punched	I can have been punching
you can have been punching
she can have been punching
we can have been punching
you can have been punching
they can have been punching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot punch
you cannot punch
she cannot punch
we cannot punch
you cannot punch
they cannot punch 	I cannot be punching
you cannot be punching
she cannot be punching
we cannot be punching
you cannot be punching
they cannot be punching	I cannot have punched
you cannot have punched
she cannot have punched
we cannot have punched
you cannot have punched
they cannot have punched	I cannot have been punching
you cannot have been punching
she cannot have been punching
we cannot have been punching
you cannot have been punching
they cannot have been punching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I punch?
can you punch?
can she punch?
can we punch?
can you punch?
can they punch? 	can I be punching?
can you be punching?
can she be punching?
can we be punching?
can you be punching?
can they be punching? 	can I have punched?
can you have punched?
can she have punched?
can we have punched?
can you have punched?
can they have punched? 	can I have been punching?
can you have been punching?
can she have been punching?
can we have been punching?
can you have been punching?
can they have been punching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not punch?
can you not punch?
can she not punch?
can we not punch?
can you not punch?
can they not punch? 	can I not be punching?
can you not be punching?
can she not be punching?
can we not be punching?
can you not be punching?
can they not be punching? 	can I not have punched?
can you not have punched?
can she not have punched?
can we not have punched?
can you not have punched?
can they not have punched? 	can I not have been punching?
can you not have been punching?
can she not have been punching?
can we not have been punching?
can you not have been punching?
can they not have been punching?