English verb conjugation
COULD TRIANGULATE

Regular verb: triangulate - triangulated - triangulated

Affirmation

Simple form	V-ing form
I could triangulate you could triangulate she could triangulate we could triangulate you could triangulate they could triangulate	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	V-ing 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	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	V-ing form
I couldn't triangulate you couldn't triangulate she couldn't triangulate we couldn't triangulate you couldn't triangulate they couldn't triangulate	I couldn't be triangulating you couldn't be triangulating she couldn't be triangulating we couldn't be triangulating you couldn't be triangulating they couldn't be triangulating
Perfect	V-ing perfect
I couldn't have triangulated you couldn't have triangulated she couldn't have triangulated we couldn't have triangulated you couldn't have triangulated they couldn't have triangulated	I couldn't have been triangulating you couldn't have been triangulating she couldn't have been triangulating we couldn't have been triangulating you couldn't have been triangulating they couldn't have been triangulating

Interrogative form

Simple form	V-ing form
could I triangulate? could you triangulate? could she triangulate? could we triangulate? could you triangulate? could they triangulate?	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	V-ing 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?	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	V-ing form
couldn't I triangulate? couldn't you triangulate? couldn't she triangulate? couldn't we triangulate? couldn't you triangulate? couldn't they triangulate?	couldn't I be triangulating? couldn't you be triangulating? couldn't she be triangulating? couldn't we be triangulating? couldn't you be triangulating? couldn't they be triangulating?
Perfect	V-ing perfect
couldn't I have triangulated? couldn't you have triangulated? couldn't she have triangulated? couldn't we have triangulated? couldn't you have triangulated? couldn't they have triangulated?	couldn't I have been triangulating? couldn't you have been triangulating? couldn't she have been triangulating? couldn't we have been triangulating? couldn't you have been triangulating? couldn't they have been triangulating?