must scrag
Verbo regular: scrag - scragged- scragged

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must scrag
you must scrag
he must scrag
we must scrag
you must scrag
they must scrag 	I must be scragging
you must be scragging
he must be scragging
we must be scragging
you must be scragging
they must be scragging	I must have scragged
you must have scragged
he must have scragged
we must have scragged
you must have scragged
they must have scragged	I must have been scragging
you must have been scragging
he must have been scragging
we must have been scragging
you must have been scragging
they must have been scragging	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not scrag
you must not scrag
he must not scrag
we must not scrag
you must not scrag
they must not scrag 	I must not be scragging
you must not be scragging
he must not be scragging
we must not be scragging
you must not be scragging
they must not be scragging	I must not have scragged
you must not have scragged
he must not have scragged
we must not have scragged
you must not have scragged
they must not have scragged	I must not have been scragging
you must not have been scragging
he must not have been scragging
we must not have been scragging
you must not have been scragging
they must not have been scragging	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I scrag?
must you scrag?
must he scrag?
must we scrag?
must you scrag?
must they scrag? 	must I be scragging?
must you be scragging?
must he be scragging?
must we be scragging?
must you be scragging?
must they be scragging? 	must I have scragged?
must you have scragged?
must he have scragged?
must we have scragged?
must you have scragged?
must they have scragged? 	must I have been scragging?
must you have been scragging?
must he have been scragging?
must we have been scragging?
must you have been scragging?
must they have been scragging? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not scrag?
must you not scrag?
must he not scrag?
must we not scrag?
must you not scrag?
must they not scrag? 	must I not be scragging?
must you not be scragging?
must he not be scragging?
must we not be scragging?
must you not be scragging?
must they not be scragging? 	must I not have scragged?
must you not have scragged?
must he not have scragged?
must we not have scragged?
must you not have scragged?
must they not have scragged? 	must I not have been scragging?
must you not have been scragging?
must he not have been scragging?
must we not have been scragging?
must you not have been scragging?
must they not have been scragging?