can chew
Regular verb: chew - chewed- chewed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can chew
you can chew
he can chew
we can chew
you can chew
they can chew 	I can be chewing
you can be chewing
he can be chewing
we can be chewing
you can be chewing
they can be chewing	I can have chewed
you can have chewed
he can have chewed
we can have chewed
you can have chewed
they can have chewed	I can have been chewing
you can have been chewing
he can have been chewing
we can have been chewing
you can have been chewing
they can have been chewing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot chew
you cannot chew
he cannot chew
we cannot chew
you cannot chew
they cannot chew 	I cannot be chewing
you cannot be chewing
he cannot be chewing
we cannot be chewing
you cannot be chewing
they cannot be chewing	I cannot have chewed
you cannot have chewed
he cannot have chewed
we cannot have chewed
you cannot have chewed
they cannot have chewed	I cannot have been chewing
you cannot have been chewing
he cannot have been chewing
we cannot have been chewing
you cannot have been chewing
they cannot have been chewing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I chew?
can you chew?
can he chew?
can we chew?
can you chew?
can they chew? 	can I be chewing?
can you be chewing?
can he be chewing?
can we be chewing?
can you be chewing?
can they be chewing? 	can I have chewed?
can you have chewed?
can he have chewed?
can we have chewed?
can you have chewed?
can they have chewed? 	can I have been chewing?
can you have been chewing?
can he have been chewing?
can we have been chewing?
can you have been chewing?
can they have been chewing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not chew?
can you not chew?
can he not chew?
can we not chew?
can you not chew?
can they not chew? 	can I not be chewing?
can you not be chewing?
can he not be chewing?
can we not be chewing?
can you not be chewing?
can they not be chewing? 	can I not have chewed?
can you not have chewed?
can he not have chewed?
can we not have chewed?
can you not have chewed?
can they not have chewed? 	can I not have been chewing?
can you not have been chewing?
can he not have been chewing?
can we not have been chewing?
can you not have been chewing?
can they not have been chewing?