I must winnow you must winnow he must winnow we must winnow you must winnow they must winnow
Forma con V-ing
I must be winnowing you must be winnowing he must be winnowing we must be winnowing you must be winnowing they must be winnowing
Perfecto
I must have winnowed you must have winnowed he must have winnowed we must have winnowed you must have winnowed they must have winnowed
Perfecto con V-ing
I must have been winnowing you must have been winnowing he must have been winnowing we must have been winnowing you must have been winnowing they must have been winnowing
Negación
Forma simple
I mustn't winnow you mustn't winnow he mustn't winnow we mustn't winnow you mustn't winnow they mustn't winnow
Forma con V-ing
I mustn't be winnowing you mustn't be winnowing he mustn't be winnowing we mustn't be winnowing you mustn't be winnowing they mustn't be winnowing
Perfecto
I mustn't have winnowed you mustn't have winnowed he mustn't have winnowed we mustn't have winnowed you mustn't have winnowed they mustn't have winnowed
Perfecto con V-ing
I mustn't have been winnowing you mustn't have been winnowing he mustn't have been winnowing we mustn't have been winnowing you mustn't have been winnowing they mustn't have been winnowing
Forma interrogativa
Forma simple
must I winnow? must you winnow? must he winnow? must we winnow? must you winnow? must they winnow?
Forma con V-ing
must I be winnowing? must you be winnowing? must he be winnowing? must we be winnowing? must you be winnowing? must they be winnowing?
Perfecto
must I have winnowed? must you have winnowed? must he have winnowed? must we have winnowed? must you have winnowed? must they have winnowed?
Perfecto con V-ing
must I have been winnowing? must you have been winnowing? must he have been winnowing? must we have been winnowing? must you have been winnowing? must they have been winnowing?
Forma interro-negativa
Forma simple
mustn't I winnow? mustn't you winnow? mustn't he winnow? mustn't we winnow? mustn't you winnow? mustn't they winnow?
Forma con V-ing
mustn't I be winnowing? mustn't you be winnowing? mustn't he be winnowing? mustn't we be winnowing? mustn't you be winnowing? mustn't they be winnowing?
Perfecto
mustn't I have winnowed? mustn't you have winnowed? mustn't he have winnowed? mustn't we have winnowed? mustn't you have winnowed? mustn't they have winnowed?
Perfecto con V-ing
mustn't I have been winnowing? mustn't you have been winnowing? mustn't he have been winnowing? mustn't we have been winnowing? mustn't you have been winnowing? mustn't they have been winnowing?