I must welcome you must welcome she must welcome we must welcome you must welcome they must welcome
Forma con V-ing
I must be welcoming you must be welcoming she must be welcoming we must be welcoming you must be welcoming they must be welcoming
Perfecto
I must have welcomed you must have welcomed she 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 she must have been welcoming we must have been welcoming you must have been welcoming they must have been welcoming
Negación
Forma simple
I must not welcome you must not welcome she must not welcome we must not welcome you must not welcome they must not welcome
Forma con V-ing
I must not be welcoming you must not be welcoming she must not be welcoming we must not be welcoming you must not be welcoming they must not be welcoming
Perfecto
I must not have welcomed you must not have welcomed she must not have welcomed we must not have welcomed you must not have welcomed they must not have welcomed
Perfecto con V-ing
I must not have been welcoming you must not have been welcoming she must not have been welcoming we must not have been welcoming you must not have been welcoming they must not have been welcoming
Forma interrogativa
Forma simple
must I welcome? must you welcome? must she welcome? must we welcome? must you welcome? must they welcome?
Forma con V-ing
must I be welcoming? must you be welcoming? must she be welcoming? must we be welcoming? must you be welcoming? must they be welcoming?
Perfecto
must I have welcomed? must you have welcomed? must she 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 she have been welcoming? must we have been welcoming? must you have been welcoming? must they have been welcoming?
Forma interro-negativa
Forma simple
must I not welcome? must you not welcome? must she not welcome? must we not welcome? must you not welcome? must they not welcome?
Forma con V-ing
must I not be welcoming? must you not be welcoming? must she not be welcoming? must we not be welcoming? must you not be welcoming? must they not be welcoming?
Perfecto
must I not have welcomed? must you not have welcomed? must she not have welcomed? must we not have welcomed? must you not have welcomed? must they not have welcomed?
Perfecto con V-ing
must I not have been welcoming? must you not have been welcoming? must she not have been welcoming? must we not have been welcoming? must you not have been welcoming? must they not have been welcoming?