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