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 couldn't overheap you couldn't overheap he couldn't overheap we couldn't overheap you couldn't overheap they couldn't overheap	I couldn't be overheaping you couldn't be overheaping he couldn't be overheaping we couldn't be overheaping you couldn't be overheaping they couldn't be overheaping
Perfect	V-ing perfect
I couldn't have overheaped you couldn't have overheaped he couldn't have overheaped we couldn't have overheaped you couldn't have overheaped they couldn't have overheaped	I couldn't have been overheaping you couldn't have been overheaping he couldn't have been overheaping we couldn't have been overheaping you couldn't have been overheaping they couldn't 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
couldn't I overheap? couldn't you overheap? couldn't he overheap? couldn't we overheap? couldn't you overheap? couldn't they overheap?	couldn't I be overheaping? couldn't you be overheaping? couldn't he be overheaping? couldn't we be overheaping? couldn't you be overheaping? couldn't they be overheaping?
Perfect	V-ing perfect
couldn't I have overheaped? couldn't you have overheaped? couldn't he have overheaped? couldn't we have overheaped? couldn't you have overheaped? couldn't they have overheaped?	couldn't I have been overheaping? couldn't you have been overheaping? couldn't he have been overheaping? couldn't we have been overheaping? couldn't you have been overheaping? couldn't they have been overheaping?