English verb conjugation
MUST SLUMP

Regular verb: slump - slumped - slumped

Affirmation

Simple form	V-ing form
I must slump you must slump she must slump we must slump you must slump they must slump	I must be slumping you must be slumping she must be slumping we must be slumping you must be slumping they must be slumping
Perfect	V-ing perfect
I must have slumped you must have slumped she must have slumped we must have slumped you must have slumped they must have slumped	I must have been slumping you must have been slumping she must have been slumping we must have been slumping you must have been slumping they must have been slumping

Negation

Simple form	V-ing form
I must not slump you must not slump she must not slump we must not slump you must not slump they must not slump	I must not be slumping you must not be slumping she must not be slumping we must not be slumping you must not be slumping they must not be slumping
Perfect	V-ing perfect
I must not have slumped you must not have slumped she must not have slumped we must not have slumped you must not have slumped they must not have slumped	I must not have been slumping you must not have been slumping she must not have been slumping we must not have been slumping you must not have been slumping they must not have been slumping

Interrogative form

Simple form	V-ing form
must I slump? must you slump? must she slump? must we slump? must you slump? must they slump?	must I be slumping? must you be slumping? must she be slumping? must we be slumping? must you be slumping? must they be slumping?
Perfect	V-ing perfect
must I have slumped? must you have slumped? must she have slumped? must we have slumped? must you have slumped? must they have slumped?	must I have been slumping? must you have been slumping? must she have been slumping? must we have been slumping? must you have been slumping? must they have been slumping?

Interro-negative form

Simple form	V-ing form
must I not slump? must you not slump? must she not slump? must we not slump? must you not slump? must they not slump?	must I not be slumping? must you not be slumping? must she not be slumping? must we not be slumping? must you not be slumping? must they not be slumping?
Perfect	V-ing perfect
must I not have slumped? must you not have slumped? must she not have slumped? must we not have slumped? must you not have slumped? must they not have slumped?	must I not have been slumping? must you not have been slumping? must she not have been slumping? must we not have been slumping? must you not have been slumping? must they not have been slumping?