must ace
Verbo regular: ace - aced- aced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must ace
you must ace
he must ace
we must ace
you must ace
they must ace 	I must be acing
you must be acing
he must be acing
we must be acing
you must be acing
they must be acing	I must have aced
you must have aced
he must have aced
we must have aced
you must have aced
they must have aced	I must have been acing
you must have been acing
he must have been acing
we must have been acing
you must have been acing
they must have been acing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not ace
you must not ace
he must not ace
we must not ace
you must not ace
they must not ace 	I must not be acing
you must not be acing
he must not be acing
we must not be acing
you must not be acing
they must not be acing	I must not have aced
you must not have aced
he must not have aced
we must not have aced
you must not have aced
they must not have aced	I must not have been acing
you must not have been acing
he must not have been acing
we must not have been acing
you must not have been acing
they must not have been acing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I ace?
must you ace?
must he ace?
must we ace?
must you ace?
must they ace? 	must I be acing?
must you be acing?
must he be acing?
must we be acing?
must you be acing?
must they be acing? 	must I have aced?
must you have aced?
must he have aced?
must we have aced?
must you have aced?
must they have aced? 	must I have been acing?
must you have been acing?
must he have been acing?
must we have been acing?
must you have been acing?
must they have been acing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not ace?
must you not ace?
must he not ace?
must we not ace?
must you not ace?
must they not ace? 	must I not be acing?
must you not be acing?
must he not be acing?
must we not be acing?
must you not be acing?
must they not be acing? 	must I not have aced?
must you not have aced?
must he not have aced?
must we not have aced?
must you not have aced?
must they not have aced? 	must I not have been acing?
must you not have been acing?
must he not have been acing?
must we not have been acing?
must you not have been acing?
must they not have been acing?