can refuse
Regular verb: refuse - refused- refused

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can refuse
you can refuse
he can refuse
we can refuse
you can refuse
they can refuse 	I can be refusing
you can be refusing
he can be refusing
we can be refusing
you can be refusing
they can be refusing	I can have refused
you can have refused
he can have refused
we can have refused
you can have refused
they can have refused	I can have been refusing
you can have been refusing
he can have been refusing
we can have been refusing
you can have been refusing
they can have been refusing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot refuse
you cannot refuse
he cannot refuse
we cannot refuse
you cannot refuse
they cannot refuse 	I cannot be refusing
you cannot be refusing
he cannot be refusing
we cannot be refusing
you cannot be refusing
they cannot be refusing	I cannot have refused
you cannot have refused
he cannot have refused
we cannot have refused
you cannot have refused
they cannot have refused	I cannot have been refusing
you cannot have been refusing
he cannot have been refusing
we cannot have been refusing
you cannot have been refusing
they cannot have been refusing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I refuse?
can you refuse?
can he refuse?
can we refuse?
can you refuse?
can they refuse? 	can I be refusing?
can you be refusing?
can he be refusing?
can we be refusing?
can you be refusing?
can they be refusing? 	can I have refused?
can you have refused?
can he have refused?
can we have refused?
can you have refused?
can they have refused? 	can I have been refusing?
can you have been refusing?
can he have been refusing?
can we have been refusing?
can you have been refusing?
can they have been refusing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not refuse?
can you not refuse?
can he not refuse?
can we not refuse?
can you not refuse?
can they not refuse? 	can I not be refusing?
can you not be refusing?
can he not be refusing?
can we not be refusing?
can you not be refusing?
can they not be refusing? 	can I not have refused?
can you not have refused?
can he not have refused?
can we not have refused?
can you not have refused?
can they not have refused? 	can I not have been refusing?
can you not have been refusing?
can he not have been refusing?
can we not have been refusing?
can you not have been refusing?
can they not have been refusing?