I could triangulate you could triangulate she could triangulate we could triangulate you could triangulate they could triangulate
V-ing form
I could be triangulating you could be triangulating she could be triangulating we could be triangulating you could be triangulating they could be triangulating
Perfect
I could have triangulated you could have triangulated she could have triangulated we could have triangulated you could have triangulated they could have triangulated
V-ing perfect
I could have been triangulating you could have been triangulating she could have been triangulating we could have been triangulating you could have been triangulating they could have been triangulating
Negation
Simple form
I could not triangulate you could not triangulate she could not triangulate we could not triangulate you could not triangulate they could not triangulate
V-ing form
I could not be triangulating you could not be triangulating she could not be triangulating we could not be triangulating you could not be triangulating they could not be triangulating
Perfect
I could not have triangulated you could not have triangulated she could not have triangulated we could not have triangulated you could not have triangulated they could not have triangulated
V-ing perfect
I could not have been triangulating you could not have been triangulating she could not have been triangulating we could not have been triangulating you could not have been triangulating they could not have been triangulating
Interrogative form
Simple form
could I triangulate? could you triangulate? could she triangulate? could we triangulate? could you triangulate? could they triangulate?
V-ing form
could I be triangulating? could you be triangulating? could she be triangulating? could we be triangulating? could you be triangulating? could they be triangulating?
Perfect
could I have triangulated? could you have triangulated? could she have triangulated? could we have triangulated? could you have triangulated? could they have triangulated?
V-ing perfect
could I have been triangulating? could you have been triangulating? could she have been triangulating? could we have been triangulating? could you have been triangulating? could they have been triangulating?
Interro-negative form
Simple form
could I not triangulate? could you not triangulate? could she not triangulate? could we not triangulate? could you not triangulate? could they not triangulate?
V-ing form
could I not be triangulating? could you not be triangulating? could she not be triangulating? could we not be triangulating? could you not be triangulating? could they not be triangulating?
Perfect
could I not have triangulated? could you not have triangulated? could she not have triangulated? could we not have triangulated? could you not have triangulated? could they not have triangulated?
V-ing perfect
could I not have been triangulating? could you not have been triangulating? could she not have been triangulating? could we not have been triangulating? could you not have been triangulating? could they not have been triangulating?