must quintuple
Verbo regular: quintuple - quintupled- quintupled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must quintuple
you must quintuple
he must quintuple
we must quintuple
you must quintuple
they must quintuple 	I must be quintupling
you must be quintupling
he must be quintupling
we must be quintupling
you must be quintupling
they must be quintupling	I must have quintupled
you must have quintupled
he must have quintupled
we must have quintupled
you must have quintupled
they must have quintupled	I must have been quintupling
you must have been quintupling
he must have been quintupling
we must have been quintupling
you must have been quintupling
they must have been quintupling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't quintuple
you mustn't quintuple
he mustn't quintuple
we mustn't quintuple
you mustn't quintuple
they mustn't quintuple 	I mustn't be quintupling
you mustn't be quintupling
he mustn't be quintupling
we mustn't be quintupling
you mustn't be quintupling
they mustn't be quintupling	I mustn't have quintupled
you mustn't have quintupled
he mustn't have quintupled
we mustn't have quintupled
you mustn't have quintupled
they mustn't have quintupled	I mustn't have been quintupling
you mustn't have been quintupling
he mustn't have been quintupling
we mustn't have been quintupling
you mustn't have been quintupling
they mustn't have been quintupling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I quintuple?
must you quintuple?
must he quintuple?
must we quintuple?
must you quintuple?
must they quintuple? 	must I be quintupling?
must you be quintupling?
must he be quintupling?
must we be quintupling?
must you be quintupling?
must they be quintupling? 	must I have quintupled?
must you have quintupled?
must he have quintupled?
must we have quintupled?
must you have quintupled?
must they have quintupled? 	must I have been quintupling?
must you have been quintupling?
must he have been quintupling?
must we have been quintupling?
must you have been quintupling?
must they have been quintupling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I quintuple?
mustn't you quintuple?
mustn't he quintuple?
mustn't we quintuple?
mustn't you quintuple?
mustn't they quintuple? 	mustn't I be quintupling?
mustn't you be quintupling?
mustn't he be quintupling?
mustn't we be quintupling?
mustn't you be quintupling?
mustn't they be quintupling? 	mustn't I have quintupled?
mustn't you have quintupled?
mustn't he have quintupled?
mustn't we have quintupled?
mustn't you have quintupled?
mustn't they have quintupled? 	mustn't I have been quintupling?
mustn't you have been quintupling?
mustn't he have been quintupling?
mustn't we have been quintupling?
mustn't you have been quintupling?
mustn't they have been quintupling?