English verb conjugation
COULD TENURE

Regular verb: tenure - tenured - tenured

Affirmation

Simple form	V-ing form
I could tenure you could tenure he could tenure we could tenure you could tenure they could tenure	I could be tenuring you could be tenuring he could be tenuring we could be tenuring you could be tenuring they could be tenuring
Perfect	V-ing perfect
I could have tenured you could have tenured he could have tenured we could have tenured you could have tenured they could have tenured	I could have been tenuring you could have been tenuring he could have been tenuring we could have been tenuring you could have been tenuring they could have been tenuring

Negation

Simple form	V-ing form
I could not tenure you could not tenure he could not tenure we could not tenure you could not tenure they could not tenure	I could not be tenuring you could not be tenuring he could not be tenuring we could not be tenuring you could not be tenuring they could not be tenuring
Perfect	V-ing perfect
I could not have tenured you could not have tenured he could not have tenured we could not have tenured you could not have tenured they could not have tenured	I could not have been tenuring you could not have been tenuring he could not have been tenuring we could not have been tenuring you could not have been tenuring they could not have been tenuring

Interrogative form

Simple form	V-ing form
could I tenure? could you tenure? could he tenure? could we tenure? could you tenure? could they tenure?	could I be tenuring? could you be tenuring? could he be tenuring? could we be tenuring? could you be tenuring? could they be tenuring?
Perfect	V-ing perfect
could I have tenured? could you have tenured? could he have tenured? could we have tenured? could you have tenured? could they have tenured?	could I have been tenuring? could you have been tenuring? could he have been tenuring? could we have been tenuring? could you have been tenuring? could they have been tenuring?

Interro-negative form

Simple form	V-ing form
could I not tenure? could you not tenure? could he not tenure? could we not tenure? could you not tenure? could they not tenure?	could I not be tenuring? could you not be tenuring? could he not be tenuring? could we not be tenuring? could you not be tenuring? could they not be tenuring?
Perfect	V-ing perfect
could I not have tenured? could you not have tenured? could he not have tenured? could we not have tenured? could you not have tenured? could they not have tenured?	could I not have been tenuring? could you not have been tenuring? could he not have been tenuring? could we not have been tenuring? could you not have been tenuring? could they not have been tenuring?