I must ambush you must ambush he must ambush we must ambush you must ambush they must ambush
V-ing form
I must be ambushing you must be ambushing he must be ambushing we must be ambushing you must be ambushing they must be ambushing
Perfect
I must have ambushed you must have ambushed he must have ambushed we must have ambushed you must have ambushed they must have ambushed
V-ing perfect
I must have been ambushing you must have been ambushing he must have been ambushing we must have been ambushing you must have been ambushing they must have been ambushing
Negation
Simple form
I must not ambush you must not ambush he must not ambush we must not ambush you must not ambush they must not ambush
V-ing form
I must not be ambushing you must not be ambushing he must not be ambushing we must not be ambushing you must not be ambushing they must not be ambushing
Perfect
I must not have ambushed you must not have ambushed he must not have ambushed we must not have ambushed you must not have ambushed they must not have ambushed
V-ing perfect
I must not have been ambushing you must not have been ambushing he must not have been ambushing we must not have been ambushing you must not have been ambushing they must not have been ambushing
Interrogative form
Simple form
must I ambush? must you ambush? must he ambush? must we ambush? must you ambush? must they ambush?
V-ing form
must I be ambushing? must you be ambushing? must he be ambushing? must we be ambushing? must you be ambushing? must they be ambushing?
Perfect
must I have ambushed? must you have ambushed? must he have ambushed? must we have ambushed? must you have ambushed? must they have ambushed?
V-ing perfect
must I have been ambushing? must you have been ambushing? must he have been ambushing? must we have been ambushing? must you have been ambushing? must they have been ambushing?
Interro-negative form
Simple form
must I not ambush? must you not ambush? must he not ambush? must we not ambush? must you not ambush? must they not ambush?
V-ing form
must I not be ambushing? must you not be ambushing? must he not be ambushing? must we not be ambushing? must you not be ambushing? must they not be ambushing?
Perfect
must I not have ambushed? must you not have ambushed? must he not have ambushed? must we not have ambushed? must you not have ambushed? must they not have ambushed?
V-ing perfect
must I not have been ambushing? must you not have been ambushing? must he not have been ambushing? must we not have been ambushing? must you not have been ambushing? must they not have been ambushing?