English verb conjugation
CAN REFUSE

Regular verb: refuse - refused - refused

Affirmation

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