must welcome
Verbo regular: welcome - welcomed- welcomed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must welcome
you must welcome
she must welcome
we must welcome
you must welcome
they must welcome 	I must be welcoming
you must be welcoming
she must be welcoming
we must be welcoming
you must be welcoming
they must be welcoming	I must have welcomed
you must have welcomed
she must have welcomed
we must have welcomed
you must have welcomed
they must have welcomed	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 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not welcome
you must not welcome
she must not welcome
we must not welcome
you must not welcome
they must not welcome 	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	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	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 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I welcome?
must you welcome?
must she welcome?
must we welcome?
must you welcome?
must they welcome? 	must I be welcoming?
must you be welcoming?
must she be welcoming?
must we be welcoming?
must you be welcoming?
must they be welcoming? 	must I have welcomed?
must you have welcomed?
must she have welcomed?
must we have welcomed?
must you have welcomed?
must they have welcomed? 	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 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not welcome?
must you not welcome?
must she not welcome?
must we not welcome?
must you not welcome?
must they not welcome? 	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? 	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? 	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?