English verb conjugation
CAN SLEDGEHAMMER

Regular verb: sledgehammer - sledgehammered - sledgehammered

Affirmation

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

Negation

Simple form	V-ing form
I cannot sledgehammer you cannot sledgehammer he cannot sledgehammer we cannot sledgehammer you cannot sledgehammer they cannot sledgehammer	I cannot be sledgehammering you cannot be sledgehammering he cannot be sledgehammering we cannot be sledgehammering you cannot be sledgehammering they cannot be sledgehammering
Perfect	V-ing perfect
I cannot have sledgehammered you cannot have sledgehammered he cannot have sledgehammered we cannot have sledgehammered you cannot have sledgehammered they cannot have sledgehammered	I cannot have been sledgehammering you cannot have been sledgehammering he cannot have been sledgehammering we cannot have been sledgehammering you cannot have been sledgehammering they cannot have been sledgehammering

Interrogative form

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

Interro-negative form

Simple form	V-ing form
can I not sledgehammer? can you not sledgehammer? can he not sledgehammer? can we not sledgehammer? can you not sledgehammer? can they not sledgehammer?	can I not be sledgehammering? can you not be sledgehammering? can he not be sledgehammering? can we not be sledgehammering? can you not be sledgehammering? can they not be sledgehammering?
Perfect	V-ing perfect
can I not have sledgehammered? can you not have sledgehammered? can he not have sledgehammered? can we not have sledgehammered? can you not have sledgehammered? can they not have sledgehammered?	can I not have been sledgehammering? can you not have been sledgehammering? can he not have been sledgehammering? can we not have been sledgehammering? can you not have been sledgehammering? can they not have been sledgehammering?