I could telescope you could telescope she could telescope we could telescope you could telescope they could telescope
V-ing form
I could be telescoping you could be telescoping she could be telescoping we could be telescoping you could be telescoping they could be telescoping
Perfect
I could have telescoped you could have telescoped she could have telescoped we could have telescoped you could have telescoped they could have telescoped
V-ing perfect
I could have been telescoping you could have been telescoping she could have been telescoping we could have been telescoping you could have been telescoping they could have been telescoping
Negation
Simple form
I could not telescope you could not telescope she could not telescope we could not telescope you could not telescope they could not telescope
V-ing form
I could not be telescoping you could not be telescoping she could not be telescoping we could not be telescoping you could not be telescoping they could not be telescoping
Perfect
I could not have telescoped you could not have telescoped she could not have telescoped we could not have telescoped you could not have telescoped they could not have telescoped
V-ing perfect
I could not have been telescoping you could not have been telescoping she could not have been telescoping we could not have been telescoping you could not have been telescoping they could not have been telescoping
Interrogative form
Simple form
could I telescope? could you telescope? could she telescope? could we telescope? could you telescope? could they telescope?
V-ing form
could I be telescoping? could you be telescoping? could she be telescoping? could we be telescoping? could you be telescoping? could they be telescoping?
Perfect
could I have telescoped? could you have telescoped? could she have telescoped? could we have telescoped? could you have telescoped? could they have telescoped?
V-ing perfect
could I have been telescoping? could you have been telescoping? could she have been telescoping? could we have been telescoping? could you have been telescoping? could they have been telescoping?
Interro-negative form
Simple form
could I not telescope? could you not telescope? could she not telescope? could we not telescope? could you not telescope? could they not telescope?
V-ing form
could I not be telescoping? could you not be telescoping? could she not be telescoping? could we not be telescoping? could you not be telescoping? could they not be telescoping?
Perfect
could I not have telescoped? could you not have telescoped? could she not have telescoped? could we not have telescoped? could you not have telescoped? could they not have telescoped?
V-ing perfect
could I not have been telescoping? could you not have been telescoping? could she not have been telescoping? could we not have been telescoping? could you not have been telescoping? could they not have been telescoping?