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