English verb conjugation
COULD SLEDGEHAMMER

Regular verb: sledgehammer - sledgehammered - sledgehammered

Affirmation

Simple form	V-ing form
I could sledgehammer you could sledgehammer she could sledgehammer we could sledgehammer you could sledgehammer they could sledgehammer	I could be sledgehammering you could be sledgehammering she could be sledgehammering we could be sledgehammering you could be sledgehammering they could be sledgehammering
Perfect	V-ing perfect
I could have sledgehammered you could have sledgehammered she could have sledgehammered we could have sledgehammered you could have sledgehammered they could have sledgehammered	I could have been sledgehammering you could have been sledgehammering she could have been sledgehammering we could have been sledgehammering you could have been sledgehammering they could have been sledgehammering

Negation

Simple form	V-ing form
I couldn't sledgehammer you couldn't sledgehammer she couldn't sledgehammer we couldn't sledgehammer you couldn't sledgehammer they couldn't sledgehammer	I couldn't be sledgehammering you couldn't be sledgehammering she couldn't be sledgehammering we couldn't be sledgehammering you couldn't be sledgehammering they couldn't be sledgehammering
Perfect	V-ing perfect
I couldn't have sledgehammered you couldn't have sledgehammered she couldn't have sledgehammered we couldn't have sledgehammered you couldn't have sledgehammered they couldn't have sledgehammered	I couldn't have been sledgehammering you couldn't have been sledgehammering she couldn't have been sledgehammering we couldn't have been sledgehammering you couldn't have been sledgehammering they couldn't have been sledgehammering

Interrogative form

Simple form	V-ing form
could I sledgehammer? could you sledgehammer? could she sledgehammer? could we sledgehammer? could you sledgehammer? could they sledgehammer?	could I be sledgehammering? could you be sledgehammering? could she be sledgehammering? could we be sledgehammering? could you be sledgehammering? could they be sledgehammering?
Perfect	V-ing perfect
could I have sledgehammered? could you have sledgehammered? could she have sledgehammered? could we have sledgehammered? could you have sledgehammered? could they have sledgehammered?	could I have been sledgehammering? could you have been sledgehammering? could she have been sledgehammering? could we have been sledgehammering? could you have been sledgehammering? could they have been sledgehammering?

Interro-negative form

Simple form	V-ing form
couldn't I sledgehammer? couldn't you sledgehammer? couldn't she sledgehammer? couldn't we sledgehammer? couldn't you sledgehammer? couldn't they sledgehammer?	couldn't I be sledgehammering? couldn't you be sledgehammering? couldn't she be sledgehammering? couldn't we be sledgehammering? couldn't you be sledgehammering? couldn't they be sledgehammering?
Perfect	V-ing perfect
couldn't I have sledgehammered? couldn't you have sledgehammered? couldn't she have sledgehammered? couldn't we have sledgehammered? couldn't you have sledgehammered? couldn't they have sledgehammered?	couldn't I have been sledgehammering? couldn't you have been sledgehammering? couldn't she have been sledgehammering? couldn't we have been sledgehammering? couldn't you have been sledgehammering? couldn't they have been sledgehammering?