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