I must lollygag you must lollygag she must lollygag we must lollygag you must lollygag they must lollygag
V-ing form
I must be lollygaging you must be lollygaging she must be lollygaging we must be lollygaging you must be lollygaging they must be lollygaging
Perfect
I must have lollygaged you must have lollygaged she must have lollygaged we must have lollygaged you must have lollygaged they must have lollygaged
V-ing perfect
I must have been lollygaging you must have been lollygaging she must have been lollygaging we must have been lollygaging you must have been lollygaging they must have been lollygaging
Negation
Simple form
I must not lollygag you must not lollygag she must not lollygag we must not lollygag you must not lollygag they must not lollygag
V-ing form
I must not be lollygaging you must not be lollygaging she must not be lollygaging we must not be lollygaging you must not be lollygaging they must not be lollygaging
Perfect
I must not have lollygaged you must not have lollygaged she must not have lollygaged we must not have lollygaged you must not have lollygaged they must not have lollygaged
V-ing perfect
I must not have been lollygaging you must not have been lollygaging she must not have been lollygaging we must not have been lollygaging you must not have been lollygaging they must not have been lollygaging
Interrogative form
Simple form
must I lollygag? must you lollygag? must she lollygag? must we lollygag? must you lollygag? must they lollygag?
V-ing form
must I be lollygaging? must you be lollygaging? must she be lollygaging? must we be lollygaging? must you be lollygaging? must they be lollygaging?
Perfect
must I have lollygaged? must you have lollygaged? must she have lollygaged? must we have lollygaged? must you have lollygaged? must they have lollygaged?
V-ing perfect
must I have been lollygaging? must you have been lollygaging? must she have been lollygaging? must we have been lollygaging? must you have been lollygaging? must they have been lollygaging?
Interro-negative form
Simple form
must I not lollygag? must you not lollygag? must she not lollygag? must we not lollygag? must you not lollygag? must they not lollygag?
V-ing form
must I not be lollygaging? must you not be lollygaging? must she not be lollygaging? must we not be lollygaging? must you not be lollygaging? must they not be lollygaging?
Perfect
must I not have lollygaged? must you not have lollygaged? must she not have lollygaged? must we not have lollygaged? must you not have lollygaged? must they not have lollygaged?
V-ing perfect
must I not have been lollygaging? must you not have been lollygaging? must she not have been lollygaging? must we not have been lollygaging? must you not have been lollygaging? must they not have been lollygaging?