I must crumple you must crumple he must crumple we must crumple you must crumple they must crumple
Forma com V-ing
I must be crumpling you must be crumpling he must be crumpling we must be crumpling you must be crumpling they must be crumpling
Perfeito
I must have crumpled you must have crumpled he must have crumpled we must have crumpled you must have crumpled they must have crumpled
Perfeito com V-ing
I must have been crumpling you must have been crumpling he must have been crumpling we must have been crumpling you must have been crumpling they must have been crumpling
Negação
Forma simple
I mustn't crumple you mustn't crumple he mustn't crumple we mustn't crumple you mustn't crumple they mustn't crumple
Forma com V-ing
I mustn't be crumpling you mustn't be crumpling he mustn't be crumpling we mustn't be crumpling you mustn't be crumpling they mustn't be crumpling
Perfeito
I mustn't have crumpled you mustn't have crumpled he mustn't have crumpled we mustn't have crumpled you mustn't have crumpled they mustn't have crumpled
Perfeito com V-ing
I mustn't have been crumpling you mustn't have been crumpling he mustn't have been crumpling we mustn't have been crumpling you mustn't have been crumpling they mustn't have been crumpling
Forma interrogativa
Forma simple
must I crumple? must you crumple? must he crumple? must we crumple? must you crumple? must they crumple?
Forma com V-ing
must I be crumpling? must you be crumpling? must he be crumpling? must we be crumpling? must you be crumpling? must they be crumpling?
Perfeito
must I have crumpled? must you have crumpled? must he have crumpled? must we have crumpled? must you have crumpled? must they have crumpled?
Perfeito com V-ing
must I have been crumpling? must you have been crumpling? must he have been crumpling? must we have been crumpling? must you have been crumpling? must they have been crumpling?
Forma interro-Negação
Forma simple
mustn't I crumple? mustn't you crumple? mustn't he crumple? mustn't we crumple? mustn't you crumple? mustn't they crumple?
Forma com V-ing
mustn't I be crumpling? mustn't you be crumpling? mustn't he be crumpling? mustn't we be crumpling? mustn't you be crumpling? mustn't they be crumpling?
Perfeito
mustn't I have crumpled? mustn't you have crumpled? mustn't he have crumpled? mustn't we have crumpled? mustn't you have crumpled? mustn't they have crumpled?
Perfeito com V-ing
mustn't I have been crumpling? mustn't you have been crumpling? mustn't he have been crumpling? mustn't we have been crumpling? mustn't you have been crumpling? mustn't they have been crumpling?