must iron
Verbo regular: iron - ironed- ironed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must iron
you must iron
he must iron
we must iron
you must iron
they must iron 	I must be ironing
you must be ironing
he must be ironing
we must be ironing
you must be ironing
they must be ironing	I must have ironed
you must have ironed
he must have ironed
we must have ironed
you must have ironed
they must have ironed	I must have been ironing
you must have been ironing
he must have been ironing
we must have been ironing
you must have been ironing
they must have been ironing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not iron
you must not iron
he must not iron
we must not iron
you must not iron
they must not iron 	I must not be ironing
you must not be ironing
he must not be ironing
we must not be ironing
you must not be ironing
they must not be ironing	I must not have ironed
you must not have ironed
he must not have ironed
we must not have ironed
you must not have ironed
they must not have ironed	I must not have been ironing
you must not have been ironing
he must not have been ironing
we must not have been ironing
you must not have been ironing
they must not have been ironing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I iron?
must you iron?
must he iron?
must we iron?
must you iron?
must they iron? 	must I be ironing?
must you be ironing?
must he be ironing?
must we be ironing?
must you be ironing?
must they be ironing? 	must I have ironed?
must you have ironed?
must he have ironed?
must we have ironed?
must you have ironed?
must they have ironed? 	must I have been ironing?
must you have been ironing?
must he have been ironing?
must we have been ironing?
must you have been ironing?
must they have been ironing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not iron?
must you not iron?
must he not iron?
must we not iron?
must you not iron?
must they not iron? 	must I not be ironing?
must you not be ironing?
must he not be ironing?
must we not be ironing?
must you not be ironing?
must they not be ironing? 	must I not have ironed?
must you not have ironed?
must he not have ironed?
must we not have ironed?
must you not have ironed?
must they not have ironed? 	must I not have been ironing?
must you not have been ironing?
must he not have been ironing?
must we not have been ironing?
must you not have been ironing?
must they not have been ironing?