English verb conjugation
MUST SLUMBER

Regular verb: slumber - slumbered - slumbered

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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