English verb conjugation
CAN SLUMBER

Regular verb: slumber - slumbered - slumbered

Affirmation

Simple form	V-ing form
I can slumber you can slumber she can slumber we can slumber you can slumber they can slumber	I can be slumbering you can be slumbering she 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 she 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 she 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 can't slumber you can't slumber she can't slumber we can't slumber you can't slumber they can't slumber	I can't be slumbering you can't be slumbering she can't be slumbering we can't be slumbering you can't be slumbering they can't be slumbering
Perfect	V-ing perfect
I can't have slumbered you can't have slumbered she can't have slumbered we can't have slumbered you can't have slumbered they can't have slumbered	I can't have been slumbering you can't have been slumbering she can't have been slumbering we can't have been slumbering you can't have been slumbering they can't have been slumbering

Interrogative form

Simple form	V-ing form
can I slumber? can you slumber? can she slumber? can we slumber? can you slumber? can they slumber?	can I be slumbering? can you be slumbering? can she 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 she 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 she 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't I slumber? can't you slumber? can't she slumber? can't we slumber? can't you slumber? can't they slumber?	can't I be slumbering? can't you be slumbering? can't she be slumbering? can't we be slumbering? can't you be slumbering? can't they be slumbering?
Perfect	V-ing perfect
can't I have slumbered? can't you have slumbered? can't she have slumbered? can't we have slumbered? can't you have slumbered? can't they have slumbered?	can't I have been slumbering? can't you have been slumbering? can't she have been slumbering? can't we have been slumbering? can't you have been slumbering? can't they have been slumbering?