I could belabor you could belabor he could belabor we could belabor you could belabor they could belabor
V-ing form
I could be belaboring you could be belaboring he could be belaboring we could be belaboring you could be belaboring they could be belaboring
Perfect
I could have belabored you could have belabored he could have belabored we could have belabored you could have belabored they could have belabored
V-ing perfect
I could have been belaboring you could have been belaboring he could have been belaboring we could have been belaboring you could have been belaboring they could have been belaboring
Negation
Simple form
I could not belabor you could not belabor he could not belabor we could not belabor you could not belabor they could not belabor
V-ing form
I could not be belaboring you could not be belaboring he could not be belaboring we could not be belaboring you could not be belaboring they could not be belaboring
Perfect
I could not have belabored you could not have belabored he could not have belabored we could not have belabored you could not have belabored they could not have belabored
V-ing perfect
I could not have been belaboring you could not have been belaboring he could not have been belaboring we could not have been belaboring you could not have been belaboring they could not have been belaboring
Interrogative form
Simple form
could I belabor? could you belabor? could he belabor? could we belabor? could you belabor? could they belabor?
V-ing form
could I be belaboring? could you be belaboring? could he be belaboring? could we be belaboring? could you be belaboring? could they be belaboring?
Perfect
could I have belabored? could you have belabored? could he have belabored? could we have belabored? could you have belabored? could they have belabored?
V-ing perfect
could I have been belaboring? could you have been belaboring? could he have been belaboring? could we have been belaboring? could you have been belaboring? could they have been belaboring?
Interro-negative form
Simple form
could I not belabor? could you not belabor? could he not belabor? could we not belabor? could you not belabor? could they not belabor?
V-ing form
could I not be belaboring? could you not be belaboring? could he not be belaboring? could we not be belaboring? could you not be belaboring? could they not be belaboring?
Perfect
could I not have belabored? could you not have belabored? could he not have belabored? could we not have belabored? could you not have belabored? could they not have belabored?
V-ing perfect
could I not have been belaboring? could you not have been belaboring? could he not have been belaboring? could we not have been belaboring? could you not have been belaboring? could they not have been belaboring?