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