must quintuple
Verbo regular: quintuple - quintupled- quintupled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must quintuple
you must quintuple
she must quintuple
we must quintuple
you must quintuple
they must quintuple 	I must be quintupling
you must be quintupling
she must be quintupling
we must be quintupling
you must be quintupling
they must be quintupling	I must have quintupled
you must have quintupled
she 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
she must have been quintupling
we must have been quintupling
you must have been quintupling
they must have been quintupling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not quintuple
you must not quintuple
she must not quintuple
we must not quintuple
you must not quintuple
they must not quintuple 	I must not be quintupling
you must not be quintupling
she must not be quintupling
we must not be quintupling
you must not be quintupling
they must not be quintupling	I must not have quintupled
you must not have quintupled
she must not have quintupled
we must not have quintupled
you must not have quintupled
they must not have quintupled	I must not have been quintupling
you must not have been quintupling
she must not have been quintupling
we must not have been quintupling
you must not have been quintupling
they must not have been quintupling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I quintuple?
must you quintuple?
must she quintuple?
must we quintuple?
must you quintuple?
must they quintuple? 	must I be quintupling?
must you be quintupling?
must she be quintupling?
must we be quintupling?
must you be quintupling?
must they be quintupling? 	must I have quintupled?
must you have quintupled?
must she 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 she have been quintupling?
must we have been quintupling?
must you have been quintupling?
must they have been quintupling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not quintuple?
must you not quintuple?
must she not quintuple?
must we not quintuple?
must you not quintuple?
must they not quintuple? 	must I not be quintupling?
must you not be quintupling?
must she not be quintupling?
must we not be quintupling?
must you not be quintupling?
must they not be quintupling? 	must I not have quintupled?
must you not have quintupled?
must she not have quintupled?
must we not have quintupled?
must you not have quintupled?
must they not have quintupled? 	must I not have been quintupling?
must you not have been quintupling?
must she not have been quintupling?
must we not have been quintupling?
must you not have been quintupling?
must they not have been quintupling?