must roar
Verbo regular: roar - roared- roared

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must roar
you must roar
he must roar
we must roar
you must roar
they must roar 	I must be roaring
you must be roaring
he must be roaring
we must be roaring
you must be roaring
they must be roaring	I must have roared
you must have roared
he must have roared
we must have roared
you must have roared
they must have roared	I must have been roaring
you must have been roaring
he must have been roaring
we must have been roaring
you must have been roaring
they must have been roaring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't roar
you mustn't roar
he mustn't roar
we mustn't roar
you mustn't roar
they mustn't roar 	I mustn't be roaring
you mustn't be roaring
he mustn't be roaring
we mustn't be roaring
you mustn't be roaring
they mustn't be roaring	I mustn't have roared
you mustn't have roared
he mustn't have roared
we mustn't have roared
you mustn't have roared
they mustn't have roared	I mustn't have been roaring
you mustn't have been roaring
he mustn't have been roaring
we mustn't have been roaring
you mustn't have been roaring
they mustn't have been roaring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I roar?
must you roar?
must he roar?
must we roar?
must you roar?
must they roar? 	must I be roaring?
must you be roaring?
must he be roaring?
must we be roaring?
must you be roaring?
must they be roaring? 	must I have roared?
must you have roared?
must he have roared?
must we have roared?
must you have roared?
must they have roared? 	must I have been roaring?
must you have been roaring?
must he have been roaring?
must we have been roaring?
must you have been roaring?
must they have been roaring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I roar?
mustn't you roar?
mustn't he roar?
mustn't we roar?
mustn't you roar?
mustn't they roar? 	mustn't I be roaring?
mustn't you be roaring?
mustn't he be roaring?
mustn't we be roaring?
mustn't you be roaring?
mustn't they be roaring? 	mustn't I have roared?
mustn't you have roared?
mustn't he have roared?
mustn't we have roared?
mustn't you have roared?
mustn't they have roared? 	mustn't I have been roaring?
mustn't you have been roaring?
mustn't he have been roaring?
mustn't we have been roaring?
mustn't you have been roaring?
mustn't they have been roaring?