English verb conjugation
COULD CLOBBER

Regular verb: clobber - clobbered - clobbered

Affirmation

Simple form	V-ing form
I could clobber you could clobber he could clobber we could clobber you could clobber they could clobber	I could be clobbering you could be clobbering he could be clobbering we could be clobbering you could be clobbering they could be clobbering
Perfect	V-ing perfect
I could have clobbered you could have clobbered he could have clobbered we could have clobbered you could have clobbered they could have clobbered	I could have been clobbering you could have been clobbering he could have been clobbering we could have been clobbering you could have been clobbering they could have been clobbering

Negation

Simple form	V-ing form
I couldn't clobber you couldn't clobber he couldn't clobber we couldn't clobber you couldn't clobber they couldn't clobber	I couldn't be clobbering you couldn't be clobbering he couldn't be clobbering we couldn't be clobbering you couldn't be clobbering they couldn't be clobbering
Perfect	V-ing perfect
I couldn't have clobbered you couldn't have clobbered he couldn't have clobbered we couldn't have clobbered you couldn't have clobbered they couldn't have clobbered	I couldn't have been clobbering you couldn't have been clobbering he couldn't have been clobbering we couldn't have been clobbering you couldn't have been clobbering they couldn't have been clobbering

Interrogative form

Simple form	V-ing form
could I clobber? could you clobber? could he clobber? could we clobber? could you clobber? could they clobber?	could I be clobbering? could you be clobbering? could he be clobbering? could we be clobbering? could you be clobbering? could they be clobbering?
Perfect	V-ing perfect
could I have clobbered? could you have clobbered? could he have clobbered? could we have clobbered? could you have clobbered? could they have clobbered?	could I have been clobbering? could you have been clobbering? could he have been clobbering? could we have been clobbering? could you have been clobbering? could they have been clobbering?

Interro-negative form

Simple form	V-ing form
couldn't I clobber? couldn't you clobber? couldn't he clobber? couldn't we clobber? couldn't you clobber? couldn't they clobber?	couldn't I be clobbering? couldn't you be clobbering? couldn't he be clobbering? couldn't we be clobbering? couldn't you be clobbering? couldn't they be clobbering?
Perfect	V-ing perfect
couldn't I have clobbered? couldn't you have clobbered? couldn't he have clobbered? couldn't we have clobbered? couldn't you have clobbered? couldn't they have clobbered?	couldn't I have been clobbering? couldn't you have been clobbering? couldn't he have been clobbering? couldn't we have been clobbering? couldn't you have been clobbering? couldn't they have been clobbering?