must triple
Verbo regular: triple - tripled- tripled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must triple
you must triple
he must triple
we must triple
you must triple
they must triple 	I must be tripling
you must be tripling
he must be tripling
we must be tripling
you must be tripling
they must be tripling	I must have tripled
you must have tripled
he must have tripled
we must have tripled
you must have tripled
they must have tripled	I must have been tripling
you must have been tripling
he must have been tripling
we must have been tripling
you must have been tripling
they must have been tripling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not triple
you must not triple
he must not triple
we must not triple
you must not triple
they must not triple 	I must not be tripling
you must not be tripling
he must not be tripling
we must not be tripling
you must not be tripling
they must not be tripling	I must not have tripled
you must not have tripled
he must not have tripled
we must not have tripled
you must not have tripled
they must not have tripled	I must not have been tripling
you must not have been tripling
he must not have been tripling
we must not have been tripling
you must not have been tripling
they must not have been tripling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I triple?
must you triple?
must he triple?
must we triple?
must you triple?
must they triple? 	must I be tripling?
must you be tripling?
must he be tripling?
must we be tripling?
must you be tripling?
must they be tripling? 	must I have tripled?
must you have tripled?
must he have tripled?
must we have tripled?
must you have tripled?
must they have tripled? 	must I have been tripling?
must you have been tripling?
must he have been tripling?
must we have been tripling?
must you have been tripling?
must they have been tripling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not triple?
must you not triple?
must he not triple?
must we not triple?
must you not triple?
must they not triple? 	must I not be tripling?
must you not be tripling?
must he not be tripling?
must we not be tripling?
must you not be tripling?
must they not be tripling? 	must I not have tripled?
must you not have tripled?
must he not have tripled?
must we not have tripled?
must you not have tripled?
must they not have tripled? 	must I not have been tripling?
must you not have been tripling?
must he not have been tripling?
must we not have been tripling?
must you not have been tripling?
must they not have been tripling?