I could appoint you could appoint he could appoint we could appoint you could appoint they could appoint
V-ing form
I could be appointing you could be appointing he could be appointing we could be appointing you could be appointing they could be appointing
Perfect
I could have appointed you could have appointed he could have appointed we could have appointed you could have appointed they could have appointed
V-ing perfect
I could have been appointing you could have been appointing he could have been appointing we could have been appointing you could have been appointing they could have been appointing
Negation
Simple form
I could not appoint you could not appoint he could not appoint we could not appoint you could not appoint they could not appoint
V-ing form
I could not be appointing you could not be appointing he could not be appointing we could not be appointing you could not be appointing they could not be appointing
Perfect
I could not have appointed you could not have appointed he could not have appointed we could not have appointed you could not have appointed they could not have appointed
V-ing perfect
I could not have been appointing you could not have been appointing he could not have been appointing we could not have been appointing you could not have been appointing they could not have been appointing
Interrogative form
Simple form
could I appoint? could you appoint? could he appoint? could we appoint? could you appoint? could they appoint?
V-ing form
could I be appointing? could you be appointing? could he be appointing? could we be appointing? could you be appointing? could they be appointing?
Perfect
could I have appointed? could you have appointed? could he have appointed? could we have appointed? could you have appointed? could they have appointed?
V-ing perfect
could I have been appointing? could you have been appointing? could he have been appointing? could we have been appointing? could you have been appointing? could they have been appointing?
Interro-negative form
Simple form
could I not appoint? could you not appoint? could he not appoint? could we not appoint? could you not appoint? could they not appoint?
V-ing form
could I not be appointing? could you not be appointing? could he not be appointing? could we not be appointing? could you not be appointing? could they not be appointing?
Perfect
could I not have appointed? could you not have appointed? could he not have appointed? could we not have appointed? could you not have appointed? could they not have appointed?
V-ing perfect
could I not have been appointing? could you not have been appointing? could he not have been appointing? could we not have been appointing? could you not have been appointing? could they not have been appointing?