must shuffle
Verbo regular: shuffle - shuffled- shuffled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must shuffle
you must shuffle
he must shuffle
we must shuffle
you must shuffle
they must shuffle 	I must be shuffling
you must be shuffling
he must be shuffling
we must be shuffling
you must be shuffling
they must be shuffling	I must have shuffled
you must have shuffled
he must have shuffled
we must have shuffled
you must have shuffled
they must have shuffled	I must have been shuffling
you must have been shuffling
he must have been shuffling
we must have been shuffling
you must have been shuffling
they must have been shuffling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not shuffle
you must not shuffle
he must not shuffle
we must not shuffle
you must not shuffle
they must not shuffle 	I must not be shuffling
you must not be shuffling
he must not be shuffling
we must not be shuffling
you must not be shuffling
they must not be shuffling	I must not have shuffled
you must not have shuffled
he must not have shuffled
we must not have shuffled
you must not have shuffled
they must not have shuffled	I must not have been shuffling
you must not have been shuffling
he must not have been shuffling
we must not have been shuffling
you must not have been shuffling
they must not have been shuffling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I shuffle?
must you shuffle?
must he shuffle?
must we shuffle?
must you shuffle?
must they shuffle? 	must I be shuffling?
must you be shuffling?
must he be shuffling?
must we be shuffling?
must you be shuffling?
must they be shuffling? 	must I have shuffled?
must you have shuffled?
must he have shuffled?
must we have shuffled?
must you have shuffled?
must they have shuffled? 	must I have been shuffling?
must you have been shuffling?
must he have been shuffling?
must we have been shuffling?
must you have been shuffling?
must they have been shuffling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not shuffle?
must you not shuffle?
must he not shuffle?
must we not shuffle?
must you not shuffle?
must they not shuffle? 	must I not be shuffling?
must you not be shuffling?
must he not be shuffling?
must we not be shuffling?
must you not be shuffling?
must they not be shuffling? 	must I not have shuffled?
must you not have shuffled?
must he not have shuffled?
must we not have shuffled?
must you not have shuffled?
must they not have shuffled? 	must I not have been shuffling?
must you not have been shuffling?
must he not have been shuffling?
must we not have been shuffling?
must you not have been shuffling?
must they not have been shuffling?