must prerequire
Verbo regular: prerequire - prerequired- prerequired

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must prerequire
you must prerequire
she must prerequire
we must prerequire
you must prerequire
they must prerequire 	I must be prerequiring
you must be prerequiring
she must be prerequiring
we must be prerequiring
you must be prerequiring
they must be prerequiring	I must have prerequired
you must have prerequired
she must have prerequired
we must have prerequired
you must have prerequired
they must have prerequired	I must have been prerequiring
you must have been prerequiring
she must have been prerequiring
we must have been prerequiring
you must have been prerequiring
they must have been prerequiring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't prerequire
you mustn't prerequire
she mustn't prerequire
we mustn't prerequire
you mustn't prerequire
they mustn't prerequire 	I mustn't be prerequiring
you mustn't be prerequiring
she mustn't be prerequiring
we mustn't be prerequiring
you mustn't be prerequiring
they mustn't be prerequiring	I mustn't have prerequired
you mustn't have prerequired
she mustn't have prerequired
we mustn't have prerequired
you mustn't have prerequired
they mustn't have prerequired	I mustn't have been prerequiring
you mustn't have been prerequiring
she mustn't have been prerequiring
we mustn't have been prerequiring
you mustn't have been prerequiring
they mustn't have been prerequiring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I prerequire?
must you prerequire?
must she prerequire?
must we prerequire?
must you prerequire?
must they prerequire? 	must I be prerequiring?
must you be prerequiring?
must she be prerequiring?
must we be prerequiring?
must you be prerequiring?
must they be prerequiring? 	must I have prerequired?
must you have prerequired?
must she have prerequired?
must we have prerequired?
must you have prerequired?
must they have prerequired? 	must I have been prerequiring?
must you have been prerequiring?
must she have been prerequiring?
must we have been prerequiring?
must you have been prerequiring?
must they have been prerequiring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I prerequire?
mustn't you prerequire?
mustn't she prerequire?
mustn't we prerequire?
mustn't you prerequire?
mustn't they prerequire? 	mustn't I be prerequiring?
mustn't you be prerequiring?
mustn't she be prerequiring?
mustn't we be prerequiring?
mustn't you be prerequiring?
mustn't they be prerequiring? 	mustn't I have prerequired?
mustn't you have prerequired?
mustn't she have prerequired?
mustn't we have prerequired?
mustn't you have prerequired?
mustn't they have prerequired? 	mustn't I have been prerequiring?
mustn't you have been prerequiring?
mustn't she have been prerequiring?
mustn't we have been prerequiring?
mustn't you have been prerequiring?
mustn't they have been prerequiring?