English verb conjugation
COULD INTERLAP

Regular verb: interlap - interlaped - interlaped

Affirmation

Simple form	V-ing form
I could interlap you could interlap he could interlap we could interlap you could interlap they could interlap	I could be interlaping you could be interlaping he could be interlaping we could be interlaping you could be interlaping they could be interlaping
Perfect	V-ing perfect
I could have interlaped you could have interlaped he could have interlaped we could have interlaped you could have interlaped they could have interlaped	I could have been interlaping you could have been interlaping he could have been interlaping we could have been interlaping you could have been interlaping they could have been interlaping

Negation

Simple form	V-ing form
I could not interlap you could not interlap he could not interlap we could not interlap you could not interlap they could not interlap	I could not be interlaping you could not be interlaping he could not be interlaping we could not be interlaping you could not be interlaping they could not be interlaping
Perfect	V-ing perfect
I could not have interlaped you could not have interlaped he could not have interlaped we could not have interlaped you could not have interlaped they could not have interlaped	I could not have been interlaping you could not have been interlaping he could not have been interlaping we could not have been interlaping you could not have been interlaping they could not have been interlaping

Interrogative form

Simple form	V-ing form
could I interlap? could you interlap? could he interlap? could we interlap? could you interlap? could they interlap?	could I be interlaping? could you be interlaping? could he be interlaping? could we be interlaping? could you be interlaping? could they be interlaping?
Perfect	V-ing perfect
could I have interlaped? could you have interlaped? could he have interlaped? could we have interlaped? could you have interlaped? could they have interlaped?	could I have been interlaping? could you have been interlaping? could he have been interlaping? could we have been interlaping? could you have been interlaping? could they have been interlaping?

Interro-negative form

Simple form	V-ing form
could I not interlap? could you not interlap? could he not interlap? could we not interlap? could you not interlap? could they not interlap?	could I not be interlaping? could you not be interlaping? could he not be interlaping? could we not be interlaping? could you not be interlaping? could they not be interlaping?
Perfect	V-ing perfect
could I not have interlaped? could you not have interlaped? could he not have interlaped? could we not have interlaped? could you not have interlaped? could they not have interlaped?	could I not have been interlaping? could you not have been interlaping? could he not have been interlaping? could we not have been interlaping? could you not have been interlaping? could they not have been interlaping?