English verb conjugation
CAN SLUMBER

Regular verb: slumber - slumbered - slumbered

Affirmation

Simple form	V-ing form
I can slumber you can slumber he can slumber we can slumber you can slumber they can slumber	I can be slumbering you can be slumbering he can be slumbering we can be slumbering you can be slumbering they can be slumbering
Perfect	V-ing perfect
I can have slumbered you can have slumbered he can have slumbered we can have slumbered you can have slumbered they can have slumbered	I can have been slumbering you can have been slumbering he can have been slumbering we can have been slumbering you can have been slumbering they can have been slumbering

Negation

Simple form	V-ing form
I cannot slumber you cannot slumber he cannot slumber we cannot slumber you cannot slumber they cannot slumber	I cannot be slumbering you cannot be slumbering he cannot be slumbering we cannot be slumbering you cannot be slumbering they cannot be slumbering
Perfect	V-ing perfect
I cannot have slumbered you cannot have slumbered he cannot have slumbered we cannot have slumbered you cannot have slumbered they cannot have slumbered	I cannot have been slumbering you cannot have been slumbering he cannot have been slumbering we cannot have been slumbering you cannot have been slumbering they cannot have been slumbering

Interrogative form

Simple form	V-ing form
can I slumber? can you slumber? can he slumber? can we slumber? can you slumber? can they slumber?	can I be slumbering? can you be slumbering? can he be slumbering? can we be slumbering? can you be slumbering? can they be slumbering?
Perfect	V-ing perfect
can I have slumbered? can you have slumbered? can he have slumbered? can we have slumbered? can you have slumbered? can they have slumbered?	can I have been slumbering? can you have been slumbering? can he have been slumbering? can we have been slumbering? can you have been slumbering? can they have been slumbering?

Interro-negative form

Simple form	V-ing form
can I not slumber? can you not slumber? can he not slumber? can we not slumber? can you not slumber? can they not slumber?	can I not be slumbering? can you not be slumbering? can he not be slumbering? can we not be slumbering? can you not be slumbering? can they not be slumbering?
Perfect	V-ing perfect
can I not have slumbered? can you not have slumbered? can he not have slumbered? can we not have slumbered? can you not have slumbered? can they not have slumbered?	can I not have been slumbering? can you not have been slumbering? can he not have been slumbering? can we not have been slumbering? can you not have been slumbering? can they not have been slumbering?