English verb conjugation
COULD DETERMINE

Regular verb: determine - determined - determined

Affirmation

Simple form	V-ing form
I could determine you could determine he could determine we could determine you could determine they could determine	I could be determining you could be determining he could be determining we could be determining you could be determining they could be determining
Perfect	V-ing perfect
I could have determined you could have determined he could have determined we could have determined you could have determined they could have determined	I could have been determining you could have been determining he could have been determining we could have been determining you could have been determining they could have been determining

Negation

Simple form	V-ing form
I could not determine you could not determine he could not determine we could not determine you could not determine they could not determine	I could not be determining you could not be determining he could not be determining we could not be determining you could not be determining they could not be determining
Perfect	V-ing perfect
I could not have determined you could not have determined he could not have determined we could not have determined you could not have determined they could not have determined	I could not have been determining you could not have been determining he could not have been determining we could not have been determining you could not have been determining they could not have been determining

Interrogative form

Simple form	V-ing form
could I determine? could you determine? could he determine? could we determine? could you determine? could they determine?	could I be determining? could you be determining? could he be determining? could we be determining? could you be determining? could they be determining?
Perfect	V-ing perfect
could I have determined? could you have determined? could he have determined? could we have determined? could you have determined? could they have determined?	could I have been determining? could you have been determining? could he have been determining? could we have been determining? could you have been determining? could they have been determining?

Interro-negative form

Simple form	V-ing form
could I not determine? could you not determine? could he not determine? could we not determine? could you not determine? could they not determine?	could I not be determining? could you not be determining? could he not be determining? could we not be determining? could you not be determining? could they not be determining?
Perfect	V-ing perfect
could I not have determined? could you not have determined? could he not have determined? could we not have determined? could you not have determined? could they not have determined?	could I not have been determining? could you not have been determining? could he not have been determining? could we not have been determining? could you not have been determining? could they not have been determining?