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