English verb conjugation
COULD ABOUT-FACE

Regular verb: about-face - about-faced - about-faced

Affirmation

Simple form	V-ing form
I could about-face you could about-face he could about-face we could about-face you could about-face they could about-face	I could be about-facing you could be about-facing he could be about-facing we could be about-facing you could be about-facing they could be about-facing
Perfect	V-ing perfect
I could have about-faced you could have about-faced he could have about-faced we could have about-faced you could have about-faced they could have about-faced	I could have been about-facing you could have been about-facing he could have been about-facing we could have been about-facing you could have been about-facing they could have been about-facing

Negation

Simple form	V-ing form
I could not about-face you could not about-face he could not about-face we could not about-face you could not about-face they could not about-face	I could not be about-facing you could not be about-facing he could not be about-facing we could not be about-facing you could not be about-facing they could not be about-facing
Perfect	V-ing perfect
I could not have about-faced you could not have about-faced he could not have about-faced we could not have about-faced you could not have about-faced they could not have about-faced	I could not have been about-facing you could not have been about-facing he could not have been about-facing we could not have been about-facing you could not have been about-facing they could not have been about-facing

Interrogative form

Simple form	V-ing form
could I about-face? could you about-face? could he about-face? could we about-face? could you about-face? could they about-face?	could I be about-facing? could you be about-facing? could he be about-facing? could we be about-facing? could you be about-facing? could they be about-facing?
Perfect	V-ing perfect
could I have about-faced? could you have about-faced? could he have about-faced? could we have about-faced? could you have about-faced? could they have about-faced?	could I have been about-facing? could you have been about-facing? could he have been about-facing? could we have been about-facing? could you have been about-facing? could they have been about-facing?

Interro-negative form

Simple form	V-ing form
could I not about-face? could you not about-face? could he not about-face? could we not about-face? could you not about-face? could they not about-face?	could I not be about-facing? could you not be about-facing? could he not be about-facing? could we not be about-facing? could you not be about-facing? could they not be about-facing?
Perfect	V-ing perfect
could I not have about-faced? could you not have about-faced? could he not have about-faced? could we not have about-faced? could you not have about-faced? could they not have about-faced?	could I not have been about-facing? could you not have been about-facing? could he not have been about-facing? could we not have been about-facing? could you not have been about-facing? could they not have been about-facing?