English verb conjugation
CAN REBUFF

Regular verb: rebuff - rebuffed - rebuffed

Affirmation

Simple form	V-ing form
I can rebuff you can rebuff he can rebuff we can rebuff you can rebuff they can rebuff	I can be rebuffing you can be rebuffing he can be rebuffing we can be rebuffing you can be rebuffing they can be rebuffing
Perfect	V-ing perfect
I can have rebuffed you can have rebuffed he can have rebuffed we can have rebuffed you can have rebuffed they can have rebuffed	I can have been rebuffing you can have been rebuffing he can have been rebuffing we can have been rebuffing you can have been rebuffing they can have been rebuffing

Negation

Simple form	V-ing form
I cannot rebuff you cannot rebuff he cannot rebuff we cannot rebuff you cannot rebuff they cannot rebuff	I cannot be rebuffing you cannot be rebuffing he cannot be rebuffing we cannot be rebuffing you cannot be rebuffing they cannot be rebuffing
Perfect	V-ing perfect
I cannot have rebuffed you cannot have rebuffed he cannot have rebuffed we cannot have rebuffed you cannot have rebuffed they cannot have rebuffed	I cannot have been rebuffing you cannot have been rebuffing he cannot have been rebuffing we cannot have been rebuffing you cannot have been rebuffing they cannot have been rebuffing

Interrogative form

Simple form	V-ing form
can I rebuff? can you rebuff? can he rebuff? can we rebuff? can you rebuff? can they rebuff?	can I be rebuffing? can you be rebuffing? can he be rebuffing? can we be rebuffing? can you be rebuffing? can they be rebuffing?
Perfect	V-ing perfect
can I have rebuffed? can you have rebuffed? can he have rebuffed? can we have rebuffed? can you have rebuffed? can they have rebuffed?	can I have been rebuffing? can you have been rebuffing? can he have been rebuffing? can we have been rebuffing? can you have been rebuffing? can they have been rebuffing?

Interro-negative form

Simple form	V-ing form
can I not rebuff? can you not rebuff? can he not rebuff? can we not rebuff? can you not rebuff? can they not rebuff?	can I not be rebuffing? can you not be rebuffing? can he not be rebuffing? can we not be rebuffing? can you not be rebuffing? can they not be rebuffing?
Perfect	V-ing perfect
can I not have rebuffed? can you not have rebuffed? can he not have rebuffed? can we not have rebuffed? can you not have rebuffed? can they not have rebuffed?	can I not have been rebuffing? can you not have been rebuffing? can he not have been rebuffing? can we not have been rebuffing? can you not have been rebuffing? can they not have been rebuffing?