I must ambush you must ambush she must ambush we must ambush you must ambush they must ambush
V-ing form
I must be ambushing you must be ambushing she must be ambushing we must be ambushing you must be ambushing they must be ambushing
Perfect
I must have ambushed you must have ambushed she 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 she must have been ambushing we must have been ambushing you must have been ambushing they must have been ambushing
Negation
Simple form
I mustn't ambush you mustn't ambush she mustn't ambush we mustn't ambush you mustn't ambush they mustn't ambush
V-ing form
I mustn't be ambushing you mustn't be ambushing she mustn't be ambushing we mustn't be ambushing you mustn't be ambushing they mustn't be ambushing
Perfect
I mustn't have ambushed you mustn't have ambushed she mustn't have ambushed we mustn't have ambushed you mustn't have ambushed they mustn't have ambushed
V-ing perfect
I mustn't have been ambushing you mustn't have been ambushing she mustn't have been ambushing we mustn't have been ambushing you mustn't have been ambushing they mustn't have been ambushing
Interrogative form
Simple form
must I ambush? must you ambush? must she ambush? must we ambush? must you ambush? must they ambush?
V-ing form
must I be ambushing? must you be ambushing? must she be ambushing? must we be ambushing? must you be ambushing? must they be ambushing?
Perfect
must I have ambushed? must you have ambushed? must she 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 she have been ambushing? must we have been ambushing? must you have been ambushing? must they have been ambushing?
Interro-negative form
Simple form
mustn't I ambush? mustn't you ambush? mustn't she ambush? mustn't we ambush? mustn't you ambush? mustn't they ambush?
V-ing form
mustn't I be ambushing? mustn't you be ambushing? mustn't she be ambushing? mustn't we be ambushing? mustn't you be ambushing? mustn't they be ambushing?
Perfect
mustn't I have ambushed? mustn't you have ambushed? mustn't she have ambushed? mustn't we have ambushed? mustn't you have ambushed? mustn't they have ambushed?
V-ing perfect
mustn't I have been ambushing? mustn't you have been ambushing? mustn't she have been ambushing? mustn't we have been ambushing? mustn't you have been ambushing? mustn't they have been ambushing?