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