I must massage you must massage she must massage we must massage you must massage they must massage
V-ing form
I must be massaging you must be massaging she must be massaging we must be massaging you must be massaging they must be massaging
Perfect
I must have massaged you must have massaged she 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 she 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 she 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 she 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 she 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 she 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 she massage? must we massage? must you massage? must they massage?
V-ing form
must I be massaging? must you be massaging? must she be massaging? must we be massaging? must you be massaging? must they be massaging?
Perfect
must I have massaged? must you have massaged? must she 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 she 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 she 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 she 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 she 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 she have been massaging? mustn't we have been massaging? mustn't you have been massaging? mustn't they have been massaging?