I can face you can face she can face we can face you can face they can face
V-ing form
I can be facing you can be facing she can be facing we can be facing you can be facing they can be facing
Perfect
I can have faced you can have faced she can have faced we can have faced you can have faced they can have faced
V-ing perfect
I can have been facing you can have been facing she can have been facing we can have been facing you can have been facing they can have been facing
Negation
Simple form
I cannot face you cannot face she cannot face we cannot face you cannot face they cannot face
V-ing form
I cannot be facing you cannot be facing she cannot be facing we cannot be facing you cannot be facing they cannot be facing
Perfect
I cannot have faced you cannot have faced she cannot have faced we cannot have faced you cannot have faced they cannot have faced
V-ing perfect
I cannot have been facing you cannot have been facing she cannot have been facing we cannot have been facing you cannot have been facing they cannot have been facing
Interrogative form
Simple form
can I face? can you face? can she face? can we face? can you face? can they face?
V-ing form
can I be facing? can you be facing? can she be facing? can we be facing? can you be facing? can they be facing?
Perfect
can I have faced? can you have faced? can she have faced? can we have faced? can you have faced? can they have faced?
V-ing perfect
can I have been facing? can you have been facing? can she have been facing? can we have been facing? can you have been facing? can they have been facing?
Interro-negative form
Simple form
can I not face? can you not face? can she not face? can we not face? can you not face? can they not face?
V-ing form
can I not be facing? can you not be facing? can she not be facing? can we not be facing? can you not be facing? can they not be facing?
Perfect
can I not have faced? can you not have faced? can she not have faced? can we not have faced? can you not have faced? can they not have faced?
V-ing perfect
can I not have been facing? can you not have been facing? can she not have been facing? can we not have been facing? can you not have been facing? can they not have been facing?