I could reside you could reside he could reside we could reside you could reside they could reside
V-ing form
I could be residing you could be residing he could be residing we could be residing you could be residing they could be residing
Perfect
I could have resided you could have resided he could have resided we could have resided you could have resided they could have resided
V-ing perfect
I could have been residing you could have been residing he could have been residing we could have been residing you could have been residing they could have been residing
Negation
Simple form
I could not reside you could not reside he could not reside we could not reside you could not reside they could not reside
V-ing form
I could not be residing you could not be residing he could not be residing we could not be residing you could not be residing they could not be residing
Perfect
I could not have resided you could not have resided he could not have resided we could not have resided you could not have resided they could not have resided
V-ing perfect
I could not have been residing you could not have been residing he could not have been residing we could not have been residing you could not have been residing they could not have been residing
Interrogative form
Simple form
could I reside? could you reside? could he reside? could we reside? could you reside? could they reside?
V-ing form
could I be residing? could you be residing? could he be residing? could we be residing? could you be residing? could they be residing?
Perfect
could I have resided? could you have resided? could he have resided? could we have resided? could you have resided? could they have resided?
V-ing perfect
could I have been residing? could you have been residing? could he have been residing? could we have been residing? could you have been residing? could they have been residing?
Interro-negative form
Simple form
could I not reside? could you not reside? could he not reside? could we not reside? could you not reside? could they not reside?
V-ing form
could I not be residing? could you not be residing? could he not be residing? could we not be residing? could you not be residing? could they not be residing?
Perfect
could I not have resided? could you not have resided? could he not have resided? could we not have resided? could you not have resided? could they not have resided?
V-ing perfect
could I not have been residing? could you not have been residing? could he not have been residing? could we not have been residing? could you not have been residing? could they not have been residing?