must differ
Verbo regular: differ - differed- differed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must differ
you must differ
he must differ
we must differ
you must differ
they must differ 	I must be differing
you must be differing
he must be differing
we must be differing
you must be differing
they must be differing	I must have differed
you must have differed
he must have differed
we must have differed
you must have differed
they must have differed	I must have been differing
you must have been differing
he must have been differing
we must have been differing
you must have been differing
they must have been differing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not differ
you must not differ
he must not differ
we must not differ
you must not differ
they must not differ 	I must not be differing
you must not be differing
he must not be differing
we must not be differing
you must not be differing
they must not be differing	I must not have differed
you must not have differed
he must not have differed
we must not have differed
you must not have differed
they must not have differed	I must not have been differing
you must not have been differing
he must not have been differing
we must not have been differing
you must not have been differing
they must not have been differing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I differ?
must you differ?
must he differ?
must we differ?
must you differ?
must they differ? 	must I be differing?
must you be differing?
must he be differing?
must we be differing?
must you be differing?
must they be differing? 	must I have differed?
must you have differed?
must he have differed?
must we have differed?
must you have differed?
must they have differed? 	must I have been differing?
must you have been differing?
must he have been differing?
must we have been differing?
must you have been differing?
must they have been differing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not differ?
must you not differ?
must he not differ?
must we not differ?
must you not differ?
must they not differ? 	must I not be differing?
must you not be differing?
must he not be differing?
must we not be differing?
must you not be differing?
must they not be differing? 	must I not have differed?
must you not have differed?
must he not have differed?
must we not have differed?
must you not have differed?
must they not have differed? 	must I not have been differing?
must you not have been differing?
must he not have been differing?
must we not have been differing?
must you not have been differing?
must they not have been differing?