English verb conjugation
COULD OVERHEAP

Regular verb: overheap - overheaped - overheaped

Affirmation

Simple form	V-ing form
I could overheap you could overheap he could overheap we could overheap you could overheap they could overheap	I could be overheaping you could be overheaping he could be overheaping we could be overheaping you could be overheaping they could be overheaping
Perfect	V-ing perfect
I could have overheaped you could have overheaped he could have overheaped we could have overheaped you could have overheaped they could have overheaped	I could have been overheaping you could have been overheaping he could have been overheaping we could have been overheaping you could have been overheaping they could have been overheaping

Negation

Simple form	V-ing form
I could not overheap you could not overheap he could not overheap we could not overheap you could not overheap they could not overheap	I could not be overheaping you could not be overheaping he could not be overheaping we could not be overheaping you could not be overheaping they could not be overheaping
Perfect	V-ing perfect
I could not have overheaped you could not have overheaped he could not have overheaped we could not have overheaped you could not have overheaped they could not have overheaped	I could not have been overheaping you could not have been overheaping he could not have been overheaping we could not have been overheaping you could not have been overheaping they could not have been overheaping

Interrogative form

Simple form	V-ing form
could I overheap? could you overheap? could he overheap? could we overheap? could you overheap? could they overheap?	could I be overheaping? could you be overheaping? could he be overheaping? could we be overheaping? could you be overheaping? could they be overheaping?
Perfect	V-ing perfect
could I have overheaped? could you have overheaped? could he have overheaped? could we have overheaped? could you have overheaped? could they have overheaped?	could I have been overheaping? could you have been overheaping? could he have been overheaping? could we have been overheaping? could you have been overheaping? could they have been overheaping?

Interro-negative form

Simple form	V-ing form
could I not overheap? could you not overheap? could he not overheap? could we not overheap? could you not overheap? could they not overheap?	could I not be overheaping? could you not be overheaping? could he not be overheaping? could we not be overheaping? could you not be overheaping? could they not be overheaping?
Perfect	V-ing perfect
could I not have overheaped? could you not have overheaped? could he not have overheaped? could we not have overheaped? could you not have overheaped? could they not have overheaped?	could I not have been overheaping? could you not have been overheaping? could he not have been overheaping? could we not have been overheaping? could you not have been overheaping? could they not have been overheaping?