I must dream you must dream he must dream we must dream you must dream they must dream
V-ing form
I must be dreaming you must be dreaming he must be dreaming we must be dreaming you must be dreaming they must be dreaming
Perfect
I must have dreamed, dreamt you must have dreamed, dreamt he must have dreamed, dreamt we must have dreamed, dreamt you must have dreamed, dreamt they must have dreamed, dreamt
V-ing perfect
I must have been dreaming you must have been dreaming he must have been dreaming we must have been dreaming you must have been dreaming they must have been dreaming
Negation
Simple form
I mustn't dream you mustn't dream he mustn't dream we mustn't dream you mustn't dream they mustn't dream
V-ing form
I mustn't be dreaming you mustn't be dreaming he mustn't be dreaming we mustn't be dreaming you mustn't be dreaming they mustn't be dreaming
Perfect
I mustn't have dreamed, dreamt you mustn't have dreamed, dreamt he mustn't have dreamed, dreamt we mustn't have dreamed, dreamt you mustn't have dreamed, dreamt they mustn't have dreamed, dreamt
V-ing perfect
I mustn't have been dreaming you mustn't have been dreaming he mustn't have been dreaming we mustn't have been dreaming you mustn't have been dreaming they mustn't have been dreaming
Interrogative form
Simple form
must I dream? must you dream? must he dream? must we dream? must you dream? must they dream?
V-ing form
must I be dreaming? must you be dreaming? must he be dreaming? must we be dreaming? must you be dreaming? must they be dreaming?
Perfect
must I have dreamed, dreamt? must you have dreamed, dreamt? must he have dreamed, dreamt? must we have dreamed, dreamt? must you have dreamed, dreamt? must they have dreamed, dreamt?
V-ing perfect
must I have been dreaming? must you have been dreaming? must he have been dreaming? must we have been dreaming? must you have been dreaming? must they have been dreaming?
Interro-negative form
Simple form
mustn't I dream? mustn't you dream? mustn't he dream? mustn't we dream? mustn't you dream? mustn't they dream?
V-ing form
mustn't I be dreaming? mustn't you be dreaming? mustn't he be dreaming? mustn't we be dreaming? mustn't you be dreaming? mustn't they be dreaming?
Perfect
mustn't I have dreamed, dreamt? mustn't you have dreamed, dreamt? mustn't he have dreamed, dreamt? mustn't we have dreamed, dreamt? mustn't you have dreamed, dreamt? mustn't they have dreamed, dreamt?
V-ing perfect
mustn't I have been dreaming? mustn't you have been dreaming? mustn't he have been dreaming? mustn't we have been dreaming? mustn't you have been dreaming? mustn't they have been dreaming?