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