English verb conjugation
CAN SLUMP

Regular verb: slump - slumped - slumped

Affirmation

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

Negation

Simple form	V-ing form
I cannot slump you cannot slump he cannot slump we cannot slump you cannot slump they cannot slump	I cannot be slumping you cannot be slumping he cannot be slumping we cannot be slumping you cannot be slumping they cannot be slumping
Perfect	V-ing perfect
I cannot have slumped you cannot have slumped he cannot have slumped we cannot have slumped you cannot have slumped they cannot have slumped	I cannot have been slumping you cannot have been slumping he cannot have been slumping we cannot have been slumping you cannot have been slumping they cannot have been slumping

Interrogative form

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

Interro-negative form

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