I can about-face you can about-face he can about-face we can about-face you can about-face they can about-face
V-ing form
I can be about-facing you can be about-facing he can be about-facing we can be about-facing you can be about-facing they can be about-facing
Perfect
I can have about-faced you can have about-faced he can have about-faced we can have about-faced you can have about-faced they can have about-faced
V-ing perfect
I can have been about-facing you can have been about-facing he can have been about-facing we can have been about-facing you can have been about-facing they can have been about-facing
Negation
Simple form
I can't about-face you can't about-face he can't about-face we can't about-face you can't about-face they can't about-face
V-ing form
I can't be about-facing you can't be about-facing he can't be about-facing we can't be about-facing you can't be about-facing they can't be about-facing
Perfect
I can't have about-faced you can't have about-faced he can't have about-faced we can't have about-faced you can't have about-faced they can't have about-faced
V-ing perfect
I can't have been about-facing you can't have been about-facing he can't have been about-facing we can't have been about-facing you can't have been about-facing they can't have been about-facing
Interrogative form
Simple form
can I about-face? can you about-face? can he about-face? can we about-face? can you about-face? can they about-face?
V-ing form
can I be about-facing? can you be about-facing? can he be about-facing? can we be about-facing? can you be about-facing? can they be about-facing?
Perfect
can I have about-faced? can you have about-faced? can he have about-faced? can we have about-faced? can you have about-faced? can they have about-faced?
V-ing perfect
can I have been about-facing? can you have been about-facing? can he have been about-facing? can we have been about-facing? can you have been about-facing? can they have been about-facing?
Interro-negative form
Simple form
can't I about-face? can't you about-face? can't he about-face? can't we about-face? can't you about-face? can't they about-face?
V-ing form
can't I be about-facing? can't you be about-facing? can't he be about-facing? can't we be about-facing? can't you be about-facing? can't they be about-facing?
Perfect
can't I have about-faced? can't you have about-faced? can't he have about-faced? can't we have about-faced? can't you have about-faced? can't they have about-faced?
V-ing perfect
can't I have been about-facing? can't you have been about-facing? can't he have been about-facing? can't we have been about-facing? can't you have been about-facing? can't they have been about-facing?