must grace
Verbo regular: grace - graced- graced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must grace
you must grace
he must grace
we must grace
you must grace
they must grace 	I must be gracing
you must be gracing
he must be gracing
we must be gracing
you must be gracing
they must be gracing	I must have graced
you must have graced
he must have graced
we must have graced
you must have graced
they must have graced	I must have been gracing
you must have been gracing
he must have been gracing
we must have been gracing
you must have been gracing
they must have been gracing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't grace
you mustn't grace
he mustn't grace
we mustn't grace
you mustn't grace
they mustn't grace 	I mustn't be gracing
you mustn't be gracing
he mustn't be gracing
we mustn't be gracing
you mustn't be gracing
they mustn't be gracing	I mustn't have graced
you mustn't have graced
he mustn't have graced
we mustn't have graced
you mustn't have graced
they mustn't have graced	I mustn't have been gracing
you mustn't have been gracing
he mustn't have been gracing
we mustn't have been gracing
you mustn't have been gracing
they mustn't have been gracing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I grace?
must you grace?
must he grace?
must we grace?
must you grace?
must they grace? 	must I be gracing?
must you be gracing?
must he be gracing?
must we be gracing?
must you be gracing?
must they be gracing? 	must I have graced?
must you have graced?
must he have graced?
must we have graced?
must you have graced?
must they have graced? 	must I have been gracing?
must you have been gracing?
must he have been gracing?
must we have been gracing?
must you have been gracing?
must they have been gracing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I grace?
mustn't you grace?
mustn't he grace?
mustn't we grace?
mustn't you grace?
mustn't they grace? 	mustn't I be gracing?
mustn't you be gracing?
mustn't he be gracing?
mustn't we be gracing?
mustn't you be gracing?
mustn't they be gracing? 	mustn't I have graced?
mustn't you have graced?
mustn't he have graced?
mustn't we have graced?
mustn't you have graced?
mustn't they have graced? 	mustn't I have been gracing?
mustn't you have been gracing?
mustn't he have been gracing?
mustn't we have been gracing?
mustn't you have been gracing?
mustn't they have been gracing?