English verb conjugation
CAN GIBBER

Regular verb: gibber - gibbered - gibbered

Affirmation

Simple form	V-ing form
I can gibber you can gibber he can gibber we can gibber you can gibber they can gibber	I can be gibbering you can be gibbering he can be gibbering we can be gibbering you can be gibbering they can be gibbering
Perfect	V-ing perfect
I can have gibbered you can have gibbered he can have gibbered we can have gibbered you can have gibbered they can have gibbered	I can have been gibbering you can have been gibbering he can have been gibbering we can have been gibbering you can have been gibbering they can have been gibbering

Negation

Simple form	V-ing form
I can't gibber you can't gibber he can't gibber we can't gibber you can't gibber they can't gibber	I can't be gibbering you can't be gibbering he can't be gibbering we can't be gibbering you can't be gibbering they can't be gibbering
Perfect	V-ing perfect
I can't have gibbered you can't have gibbered he can't have gibbered we can't have gibbered you can't have gibbered they can't have gibbered	I can't have been gibbering you can't have been gibbering he can't have been gibbering we can't have been gibbering you can't have been gibbering they can't have been gibbering

Interrogative form

Simple form	V-ing form
can I gibber? can you gibber? can he gibber? can we gibber? can you gibber? can they gibber?	can I be gibbering? can you be gibbering? can he be gibbering? can we be gibbering? can you be gibbering? can they be gibbering?
Perfect	V-ing perfect
can I have gibbered? can you have gibbered? can he have gibbered? can we have gibbered? can you have gibbered? can they have gibbered?	can I have been gibbering? can you have been gibbering? can he have been gibbering? can we have been gibbering? can you have been gibbering? can they have been gibbering?

Interro-negative form

Simple form	V-ing form
can't I gibber? can't you gibber? can't he gibber? can't we gibber? can't you gibber? can't they gibber?	can't I be gibbering? can't you be gibbering? can't he be gibbering? can't we be gibbering? can't you be gibbering? can't they be gibbering?
Perfect	V-ing perfect
can't I have gibbered? can't you have gibbered? can't he have gibbered? can't we have gibbered? can't you have gibbered? can't they have gibbered?	can't I have been gibbering? can't you have been gibbering? can't he have been gibbering? can't we have been gibbering? can't you have been gibbering? can't they have been gibbering?