I must lollop you must lollop she must lollop we must lollop you must lollop they must lollop
V-ing form
I must be lolloping you must be lolloping she must be lolloping we must be lolloping you must be lolloping they must be lolloping
Perfect
I must have lolloped you must have lolloped she must have lolloped we must have lolloped you must have lolloped they must have lolloped
V-ing perfect
I must have been lolloping you must have been lolloping she must have been lolloping we must have been lolloping you must have been lolloping they must have been lolloping
Negation
Simple form
I must not lollop you must not lollop she must not lollop we must not lollop you must not lollop they must not lollop
V-ing form
I must not be lolloping you must not be lolloping she must not be lolloping we must not be lolloping you must not be lolloping they must not be lolloping
Perfect
I must not have lolloped you must not have lolloped she must not have lolloped we must not have lolloped you must not have lolloped they must not have lolloped
V-ing perfect
I must not have been lolloping you must not have been lolloping she must not have been lolloping we must not have been lolloping you must not have been lolloping they must not have been lolloping
Interrogative form
Simple form
must I lollop? must you lollop? must she lollop? must we lollop? must you lollop? must they lollop?
V-ing form
must I be lolloping? must you be lolloping? must she be lolloping? must we be lolloping? must you be lolloping? must they be lolloping?
Perfect
must I have lolloped? must you have lolloped? must she have lolloped? must we have lolloped? must you have lolloped? must they have lolloped?
V-ing perfect
must I have been lolloping? must you have been lolloping? must she have been lolloping? must we have been lolloping? must you have been lolloping? must they have been lolloping?
Interro-negative form
Simple form
must I not lollop? must you not lollop? must she not lollop? must we not lollop? must you not lollop? must they not lollop?
V-ing form
must I not be lolloping? must you not be lolloping? must she not be lolloping? must we not be lolloping? must you not be lolloping? must they not be lolloping?
Perfect
must I not have lolloped? must you not have lolloped? must she not have lolloped? must we not have lolloped? must you not have lolloped? must they not have lolloped?
V-ing perfect
must I not have been lolloping? must you not have been lolloping? must she not have been lolloping? must we not have been lolloping? must you not have been lolloping? must they not have been lolloping?