English verb conjugation
MUST SLUMP

Regular verb: slump - slumped - slumped

Affirmation

Simple form	V-ing form
I must slump you must slump he must slump we must slump you must slump they must slump	I must be slumping you must be slumping he 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 he 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 he 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 mustn't slump you mustn't slump he mustn't slump we mustn't slump you mustn't slump they mustn't slump	I mustn't be slumping you mustn't be slumping he mustn't be slumping we mustn't be slumping you mustn't be slumping they mustn't be slumping
Perfect	V-ing perfect
I mustn't have slumped you mustn't have slumped he mustn't have slumped we mustn't have slumped you mustn't have slumped they mustn't have slumped	I mustn't have been slumping you mustn't have been slumping he mustn't have been slumping we mustn't have been slumping you mustn't have been slumping they mustn't have been slumping

Interrogative form

Simple form	V-ing form
must I slump? must you slump? must he slump? must we slump? must you slump? must they slump?	must I be slumping? must you be slumping? must he 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 he 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 he 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
mustn't I slump? mustn't you slump? mustn't he slump? mustn't we slump? mustn't you slump? mustn't they slump?	mustn't I be slumping? mustn't you be slumping? mustn't he be slumping? mustn't we be slumping? mustn't you be slumping? mustn't they be slumping?
Perfect	V-ing perfect
mustn't I have slumped? mustn't you have slumped? mustn't he have slumped? mustn't we have slumped? mustn't you have slumped? mustn't they have slumped?	mustn't I have been slumping? mustn't you have been slumping? mustn't he have been slumping? mustn't we have been slumping? mustn't you have been slumping? mustn't they have been slumping?