I must poop you must poop she must poop we must poop you must poop they must poop
V-ing form
I must be pooping you must be pooping she must be pooping we must be pooping you must be pooping they must be pooping
Perfect
I must have pooped you must have pooped she must have pooped we must have pooped you must have pooped they must have pooped
V-ing perfect
I must have been pooping you must have been pooping she must have been pooping we must have been pooping you must have been pooping they must have been pooping
Negation
Simple form
I must not poop you must not poop she must not poop we must not poop you must not poop they must not poop
V-ing form
I must not be pooping you must not be pooping she must not be pooping we must not be pooping you must not be pooping they must not be pooping
Perfect
I must not have pooped you must not have pooped she must not have pooped we must not have pooped you must not have pooped they must not have pooped
V-ing perfect
I must not have been pooping you must not have been pooping she must not have been pooping we must not have been pooping you must not have been pooping they must not have been pooping
Interrogative form
Simple form
must I poop? must you poop? must she poop? must we poop? must you poop? must they poop?
V-ing form
must I be pooping? must you be pooping? must she be pooping? must we be pooping? must you be pooping? must they be pooping?
Perfect
must I have pooped? must you have pooped? must she have pooped? must we have pooped? must you have pooped? must they have pooped?
V-ing perfect
must I have been pooping? must you have been pooping? must she have been pooping? must we have been pooping? must you have been pooping? must they have been pooping?
Interro-negative form
Simple form
must I not poop? must you not poop? must she not poop? must we not poop? must you not poop? must they not poop?
V-ing form
must I not be pooping? must you not be pooping? must she not be pooping? must we not be pooping? must you not be pooping? must they not be pooping?
Perfect
must I not have pooped? must you not have pooped? must she not have pooped? must we not have pooped? must you not have pooped? must they not have pooped?
V-ing perfect
must I not have been pooping? must you not have been pooping? must she not have been pooping? must we not have been pooping? must you not have been pooping? must they not have been pooping?