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