must gangrene
Verbo regular: gangrene - gangrened- gangrened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must gangrene
you must gangrene
he must gangrene
we must gangrene
you must gangrene
they must gangrene 	I must be gangrening
you must be gangrening
he must be gangrening
we must be gangrening
you must be gangrening
they must be gangrening	I must have gangrened
you must have gangrened
he must have gangrened
we must have gangrened
you must have gangrened
they must have gangrened	I must have been gangrening
you must have been gangrening
he must have been gangrening
we must have been gangrening
you must have been gangrening
they must have been gangrening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not gangrene
you must not gangrene
he must not gangrene
we must not gangrene
you must not gangrene
they must not gangrene 	I must not be gangrening
you must not be gangrening
he must not be gangrening
we must not be gangrening
you must not be gangrening
they must not be gangrening	I must not have gangrened
you must not have gangrened
he must not have gangrened
we must not have gangrened
you must not have gangrened
they must not have gangrened	I must not have been gangrening
you must not have been gangrening
he must not have been gangrening
we must not have been gangrening
you must not have been gangrening
they must not have been gangrening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I gangrene?
must you gangrene?
must he gangrene?
must we gangrene?
must you gangrene?
must they gangrene? 	must I be gangrening?
must you be gangrening?
must he be gangrening?
must we be gangrening?
must you be gangrening?
must they be gangrening? 	must I have gangrened?
must you have gangrened?
must he have gangrened?
must we have gangrened?
must you have gangrened?
must they have gangrened? 	must I have been gangrening?
must you have been gangrening?
must he have been gangrening?
must we have been gangrening?
must you have been gangrening?
must they have been gangrening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not gangrene?
must you not gangrene?
must he not gangrene?
must we not gangrene?
must you not gangrene?
must they not gangrene? 	must I not be gangrening?
must you not be gangrening?
must he not be gangrening?
must we not be gangrening?
must you not be gangrening?
must they not be gangrening? 	must I not have gangrened?
must you not have gangrened?
must he not have gangrened?
must we not have gangrened?
must you not have gangrened?
must they not have gangrened? 	must I not have been gangrening?
must you not have been gangrening?
must he not have been gangrening?
must we not have been gangrening?
must you not have been gangrening?
must they not have been gangrening?