English verb conjugation
COULD INGULF

Regular verb: ingulf - ingulfed - ingulfed

Affirmation

Simple form	V-ing form
I could ingulf you could ingulf he could ingulf we could ingulf you could ingulf they could ingulf	I could be ingulfing you could be ingulfing he could be ingulfing we could be ingulfing you could be ingulfing they could be ingulfing
Perfect	V-ing perfect
I could have ingulfed you could have ingulfed he could have ingulfed we could have ingulfed you could have ingulfed they could have ingulfed	I could have been ingulfing you could have been ingulfing he could have been ingulfing we could have been ingulfing you could have been ingulfing they could have been ingulfing

Negation

Simple form	V-ing form
I could not ingulf you could not ingulf he could not ingulf we could not ingulf you could not ingulf they could not ingulf	I could not be ingulfing you could not be ingulfing he could not be ingulfing we could not be ingulfing you could not be ingulfing they could not be ingulfing
Perfect	V-ing perfect
I could not have ingulfed you could not have ingulfed he could not have ingulfed we could not have ingulfed you could not have ingulfed they could not have ingulfed	I could not have been ingulfing you could not have been ingulfing he could not have been ingulfing we could not have been ingulfing you could not have been ingulfing they could not have been ingulfing

Interrogative form

Simple form	V-ing form
could I ingulf? could you ingulf? could he ingulf? could we ingulf? could you ingulf? could they ingulf?	could I be ingulfing? could you be ingulfing? could he be ingulfing? could we be ingulfing? could you be ingulfing? could they be ingulfing?
Perfect	V-ing perfect
could I have ingulfed? could you have ingulfed? could he have ingulfed? could we have ingulfed? could you have ingulfed? could they have ingulfed?	could I have been ingulfing? could you have been ingulfing? could he have been ingulfing? could we have been ingulfing? could you have been ingulfing? could they have been ingulfing?

Interro-negative form

Simple form	V-ing form
could I not ingulf? could you not ingulf? could he not ingulf? could we not ingulf? could you not ingulf? could they not ingulf?	could I not be ingulfing? could you not be ingulfing? could he not be ingulfing? could we not be ingulfing? could you not be ingulfing? could they not be ingulfing?
Perfect	V-ing perfect
could I not have ingulfed? could you not have ingulfed? could he not have ingulfed? could we not have ingulfed? could you not have ingulfed? could they not have ingulfed?	could I not have been ingulfing? could you not have been ingulfing? could he not have been ingulfing? could we not have been ingulfing? could you not have been ingulfing? could they not have been ingulfing?