I must crook you must crook she must crook we must crook you must crook they must crook
Forma con V-ing
I must be crooking you must be crooking she must be crooking we must be crooking you must be crooking they must be crooking
Perfecto
I must have crooked you must have crooked she must have crooked we must have crooked you must have crooked they must have crooked
Perfecto con V-ing
I must have been crooking you must have been crooking she must have been crooking we must have been crooking you must have been crooking they must have been crooking
Negación
Forma simple
I mustn't crook you mustn't crook she mustn't crook we mustn't crook you mustn't crook they mustn't crook
Forma con V-ing
I mustn't be crooking you mustn't be crooking she mustn't be crooking we mustn't be crooking you mustn't be crooking they mustn't be crooking
Perfecto
I mustn't have crooked you mustn't have crooked she mustn't have crooked we mustn't have crooked you mustn't have crooked they mustn't have crooked
Perfecto con V-ing
I mustn't have been crooking you mustn't have been crooking she mustn't have been crooking we mustn't have been crooking you mustn't have been crooking they mustn't have been crooking
Forma interrogativa
Forma simple
must I crook? must you crook? must she crook? must we crook? must you crook? must they crook?
Forma con V-ing
must I be crooking? must you be crooking? must she be crooking? must we be crooking? must you be crooking? must they be crooking?
Perfecto
must I have crooked? must you have crooked? must she have crooked? must we have crooked? must you have crooked? must they have crooked?
Perfecto con V-ing
must I have been crooking? must you have been crooking? must she have been crooking? must we have been crooking? must you have been crooking? must they have been crooking?
Forma interro-negativa
Forma simple
mustn't I crook? mustn't you crook? mustn't she crook? mustn't we crook? mustn't you crook? mustn't they crook?
Forma con V-ing
mustn't I be crooking? mustn't you be crooking? mustn't she be crooking? mustn't we be crooking? mustn't you be crooking? mustn't they be crooking?
Perfecto
mustn't I have crooked? mustn't you have crooked? mustn't she have crooked? mustn't we have crooked? mustn't you have crooked? mustn't they have crooked?
Perfecto con V-ing
mustn't I have been crooking? mustn't you have been crooking? mustn't she have been crooking? mustn't we have been crooking? mustn't you have been crooking? mustn't they have been crooking?