I must massage you must massage he must massage we must massage you must massage they must massage
V-ing form
I must be massaging you must be massaging he must be massaging we must be massaging you must be massaging they must be massaging
Perfect
I must have massaged you must have massaged he must have massaged we must have massaged you must have massaged they must have massaged
V-ing perfect
I must have been massaging you must have been massaging he must have been massaging we must have been massaging you must have been massaging they must have been massaging
Negation
Simple form
I mustn't massage you mustn't massage he mustn't massage we mustn't massage you mustn't massage they mustn't massage
V-ing form
I mustn't be massaging you mustn't be massaging he mustn't be massaging we mustn't be massaging you mustn't be massaging they mustn't be massaging
Perfect
I mustn't have massaged you mustn't have massaged he mustn't have massaged we mustn't have massaged you mustn't have massaged they mustn't have massaged
V-ing perfect
I mustn't have been massaging you mustn't have been massaging he mustn't have been massaging we mustn't have been massaging you mustn't have been massaging they mustn't have been massaging
Interrogative form
Simple form
must I massage? must you massage? must he massage? must we massage? must you massage? must they massage?
V-ing form
must I be massaging? must you be massaging? must he be massaging? must we be massaging? must you be massaging? must they be massaging?
Perfect
must I have massaged? must you have massaged? must he have massaged? must we have massaged? must you have massaged? must they have massaged?
V-ing perfect
must I have been massaging? must you have been massaging? must he have been massaging? must we have been massaging? must you have been massaging? must they have been massaging?
Interro-negative form
Simple form
mustn't I massage? mustn't you massage? mustn't he massage? mustn't we massage? mustn't you massage? mustn't they massage?
V-ing form
mustn't I be massaging? mustn't you be massaging? mustn't he be massaging? mustn't we be massaging? mustn't you be massaging? mustn't they be massaging?
Perfect
mustn't I have massaged? mustn't you have massaged? mustn't he have massaged? mustn't we have massaged? mustn't you have massaged? mustn't they have massaged?
V-ing perfect
mustn't I have been massaging? mustn't you have been massaging? mustn't he have been massaging? mustn't we have been massaging? mustn't you have been massaging? mustn't they have been massaging?