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