I must while you must while he must while we must while you must while they must while
Forma com V-ing
I must be whiling you must be whiling he must be whiling we must be whiling you must be whiling they must be whiling
Perfeito
I must have whiled you must have whiled he must have whiled we must have whiled you must have whiled they must have whiled
Perfeito com V-ing
I must have been whiling you must have been whiling he must have been whiling we must have been whiling you must have been whiling they must have been whiling
Negação
Forma simple
I mustn't while you mustn't while he mustn't while we mustn't while you mustn't while they mustn't while
Forma com V-ing
I mustn't be whiling you mustn't be whiling he mustn't be whiling we mustn't be whiling you mustn't be whiling they mustn't be whiling
Perfeito
I mustn't have whiled you mustn't have whiled he mustn't have whiled we mustn't have whiled you mustn't have whiled they mustn't have whiled
Perfeito com V-ing
I mustn't have been whiling you mustn't have been whiling he mustn't have been whiling we mustn't have been whiling you mustn't have been whiling they mustn't have been whiling
Forma interrogativa
Forma simple
must I while? must you while? must he while? must we while? must you while? must they while?
Forma com V-ing
must I be whiling? must you be whiling? must he be whiling? must we be whiling? must you be whiling? must they be whiling?
Perfeito
must I have whiled? must you have whiled? must he have whiled? must we have whiled? must you have whiled? must they have whiled?
Perfeito com V-ing
must I have been whiling? must you have been whiling? must he have been whiling? must we have been whiling? must you have been whiling? must they have been whiling?
Forma interro-Negação
Forma simple
mustn't I while? mustn't you while? mustn't he while? mustn't we while? mustn't you while? mustn't they while?
Forma com V-ing
mustn't I be whiling? mustn't you be whiling? mustn't he be whiling? mustn't we be whiling? mustn't you be whiling? mustn't they be whiling?
Perfeito
mustn't I have whiled? mustn't you have whiled? mustn't he have whiled? mustn't we have whiled? mustn't you have whiled? mustn't they have whiled?
Perfeito com V-ing
mustn't I have been whiling? mustn't you have been whiling? mustn't he have been whiling? mustn't we have been whiling? mustn't you have been whiling? mustn't they have been whiling?