must about-face
Verbo regular: about-face - about-faced- about-faced

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must about-face
you must about-face
she must about-face
we must about-face
you must about-face
they must about-face 	I must be about-facing
you must be about-facing
she must be about-facing
we must be about-facing
you must be about-facing
they must be about-facing	I must have about-faced
you must have about-faced
she must have about-faced
we must have about-faced
you must have about-faced
they must have about-faced	I must have been about-facing
you must have been about-facing
she must have been about-facing
we must have been about-facing
you must have been about-facing
they must have been about-facing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not about-face
you must not about-face
she must not about-face
we must not about-face
you must not about-face
they must not about-face 	I must not be about-facing
you must not be about-facing
she must not be about-facing
we must not be about-facing
you must not be about-facing
they must not be about-facing	I must not have about-faced
you must not have about-faced
she must not have about-faced
we must not have about-faced
you must not have about-faced
they must not have about-faced	I must not have been about-facing
you must not have been about-facing
she must not have been about-facing
we must not have been about-facing
you must not have been about-facing
they must not have been about-facing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I about-face?
must you about-face?
must she about-face?
must we about-face?
must you about-face?
must they about-face? 	must I be about-facing?
must you be about-facing?
must she be about-facing?
must we be about-facing?
must you be about-facing?
must they be about-facing? 	must I have about-faced?
must you have about-faced?
must she have about-faced?
must we have about-faced?
must you have about-faced?
must they have about-faced? 	must I have been about-facing?
must you have been about-facing?
must she have been about-facing?
must we have been about-facing?
must you have been about-facing?
must they have been about-facing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not about-face?
must you not about-face?
must she not about-face?
must we not about-face?
must you not about-face?
must they not about-face? 	must I not be about-facing?
must you not be about-facing?
must she not be about-facing?
must we not be about-facing?
must you not be about-facing?
must they not be about-facing? 	must I not have about-faced?
must you not have about-faced?
must she not have about-faced?
must we not have about-faced?
must you not have about-faced?
must they not have about-faced? 	must I not have been about-facing?
must you not have been about-facing?
must she not have been about-facing?
must we not have been about-facing?
must you not have been about-facing?
must they not have been about-facing?