must efface
Verbo regular: efface - effaced- effaced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must efface
you must efface
she must efface
we must efface
you must efface
they must efface 	I must be effacing
you must be effacing
she must be effacing
we must be effacing
you must be effacing
they must be effacing	I must have effaced
you must have effaced
she must have effaced
we must have effaced
you must have effaced
they must have effaced	I must have been effacing
you must have been effacing
she must have been effacing
we must have been effacing
you must have been effacing
they must have been effacing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not efface
you must not efface
she must not efface
we must not efface
you must not efface
they must not efface 	I must not be effacing
you must not be effacing
she must not be effacing
we must not be effacing
you must not be effacing
they must not be effacing	I must not have effaced
you must not have effaced
she must not have effaced
we must not have effaced
you must not have effaced
they must not have effaced	I must not have been effacing
you must not have been effacing
she must not have been effacing
we must not have been effacing
you must not have been effacing
they must not have been effacing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I efface?
must you efface?
must she efface?
must we efface?
must you efface?
must they efface? 	must I be effacing?
must you be effacing?
must she be effacing?
must we be effacing?
must you be effacing?
must they be effacing? 	must I have effaced?
must you have effaced?
must she have effaced?
must we have effaced?
must you have effaced?
must they have effaced? 	must I have been effacing?
must you have been effacing?
must she have been effacing?
must we have been effacing?
must you have been effacing?
must they have been effacing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not efface?
must you not efface?
must she not efface?
must we not efface?
must you not efface?
must they not efface? 	must I not be effacing?
must you not be effacing?
must she not be effacing?
must we not be effacing?
must you not be effacing?
must they not be effacing? 	must I not have effaced?
must you not have effaced?
must she not have effaced?
must we not have effaced?
must you not have effaced?
must they not have effaced? 	must I not have been effacing?
must you not have been effacing?
must she not have been effacing?
must we not have been effacing?
must you not have been effacing?
must they not have been effacing?