English verb conjugation
COULD DEBUT

Regular verb: debut - debuted - debuted

Affirmation

Simple form	V-ing form
I could debut you could debut he could debut we could debut you could debut they could debut	I could be debuting you could be debuting he could be debuting we could be debuting you could be debuting they could be debuting
Perfect	V-ing perfect
I could have debuted you could have debuted he could have debuted we could have debuted you could have debuted they could have debuted	I could have been debuting you could have been debuting he could have been debuting we could have been debuting you could have been debuting they could have been debuting

Negation

Simple form	V-ing form
I couldn't debut you couldn't debut he couldn't debut we couldn't debut you couldn't debut they couldn't debut	I couldn't be debuting you couldn't be debuting he couldn't be debuting we couldn't be debuting you couldn't be debuting they couldn't be debuting
Perfect	V-ing perfect
I couldn't have debuted you couldn't have debuted he couldn't have debuted we couldn't have debuted you couldn't have debuted they couldn't have debuted	I couldn't have been debuting you couldn't have been debuting he couldn't have been debuting we couldn't have been debuting you couldn't have been debuting they couldn't have been debuting

Interrogative form

Simple form	V-ing form
could I debut? could you debut? could he debut? could we debut? could you debut? could they debut?	could I be debuting? could you be debuting? could he be debuting? could we be debuting? could you be debuting? could they be debuting?
Perfect	V-ing perfect
could I have debuted? could you have debuted? could he have debuted? could we have debuted? could you have debuted? could they have debuted?	could I have been debuting? could you have been debuting? could he have been debuting? could we have been debuting? could you have been debuting? could they have been debuting?

Interro-negative form

Simple form	V-ing form
couldn't I debut? couldn't you debut? couldn't he debut? couldn't we debut? couldn't you debut? couldn't they debut?	couldn't I be debuting? couldn't you be debuting? couldn't he be debuting? couldn't we be debuting? couldn't you be debuting? couldn't they be debuting?
Perfect	V-ing perfect
couldn't I have debuted? couldn't you have debuted? couldn't he have debuted? couldn't we have debuted? couldn't you have debuted? couldn't they have debuted?	couldn't I have been debuting? couldn't you have been debuting? couldn't he have been debuting? couldn't we have been debuting? couldn't you have been debuting? couldn't they have been debuting?