must reform
Verbo regular: reform - reformed- reformed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must reform
you must reform
he must reform
we must reform
you must reform
they must reform 	I must be reforming
you must be reforming
he must be reforming
we must be reforming
you must be reforming
they must be reforming	I must have reformed
you must have reformed
he must have reformed
we must have reformed
you must have reformed
they must have reformed	I must have been reforming
you must have been reforming
he must have been reforming
we must have been reforming
you must have been reforming
they must have been reforming	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not reform
you must not reform
he must not reform
we must not reform
you must not reform
they must not reform 	I must not be reforming
you must not be reforming
he must not be reforming
we must not be reforming
you must not be reforming
they must not be reforming	I must not have reformed
you must not have reformed
he must not have reformed
we must not have reformed
you must not have reformed
they must not have reformed	I must not have been reforming
you must not have been reforming
he must not have been reforming
we must not have been reforming
you must not have been reforming
they must not have been reforming	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I reform?
must you reform?
must he reform?
must we reform?
must you reform?
must they reform? 	must I be reforming?
must you be reforming?
must he be reforming?
must we be reforming?
must you be reforming?
must they be reforming? 	must I have reformed?
must you have reformed?
must he have reformed?
must we have reformed?
must you have reformed?
must they have reformed? 	must I have been reforming?
must you have been reforming?
must he have been reforming?
must we have been reforming?
must you have been reforming?
must they have been reforming? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not reform?
must you not reform?
must he not reform?
must we not reform?
must you not reform?
must they not reform? 	must I not be reforming?
must you not be reforming?
must he not be reforming?
must we not be reforming?
must you not be reforming?
must they not be reforming? 	must I not have reformed?
must you not have reformed?
must he not have reformed?
must we not have reformed?
must you not have reformed?
must they not have reformed? 	must I not have been reforming?
must you not have been reforming?
must he not have been reforming?
must we not have been reforming?
must you not have been reforming?
must they not have been reforming?