English verb conjugation
COULD WHISTLE-STOP

Regular verb: whistle-stop - whistle-stoped - whistle-stoped

Affirmation

Simple form	V-ing form
I could whistle-stop you could whistle-stop she could whistle-stop we could whistle-stop you could whistle-stop they could whistle-stop	I could be whistle-stoping you could be whistle-stoping she could be whistle-stoping we could be whistle-stoping you could be whistle-stoping they could be whistle-stoping
Perfect	V-ing perfect
I could have whistle-stoped you could have whistle-stoped she could have whistle-stoped we could have whistle-stoped you could have whistle-stoped they could have whistle-stoped	I could have been whistle-stoping you could have been whistle-stoping she could have been whistle-stoping we could have been whistle-stoping you could have been whistle-stoping they could have been whistle-stoping

Negation

Simple form	V-ing form
I could not whistle-stop you could not whistle-stop she could not whistle-stop we could not whistle-stop you could not whistle-stop they could not whistle-stop	I could not be whistle-stoping you could not be whistle-stoping she could not be whistle-stoping we could not be whistle-stoping you could not be whistle-stoping they could not be whistle-stoping
Perfect	V-ing perfect
I could not have whistle-stoped you could not have whistle-stoped she could not have whistle-stoped we could not have whistle-stoped you could not have whistle-stoped they could not have whistle-stoped	I could not have been whistle-stoping you could not have been whistle-stoping she could not have been whistle-stoping we could not have been whistle-stoping you could not have been whistle-stoping they could not have been whistle-stoping

Interrogative form

Simple form	V-ing form
could I whistle-stop? could you whistle-stop? could she whistle-stop? could we whistle-stop? could you whistle-stop? could they whistle-stop?	could I be whistle-stoping? could you be whistle-stoping? could she be whistle-stoping? could we be whistle-stoping? could you be whistle-stoping? could they be whistle-stoping?
Perfect	V-ing perfect
could I have whistle-stoped? could you have whistle-stoped? could she have whistle-stoped? could we have whistle-stoped? could you have whistle-stoped? could they have whistle-stoped?	could I have been whistle-stoping? could you have been whistle-stoping? could she have been whistle-stoping? could we have been whistle-stoping? could you have been whistle-stoping? could they have been whistle-stoping?

Interro-negative form

Simple form	V-ing form
could I not whistle-stop? could you not whistle-stop? could she not whistle-stop? could we not whistle-stop? could you not whistle-stop? could they not whistle-stop?	could I not be whistle-stoping? could you not be whistle-stoping? could she not be whistle-stoping? could we not be whistle-stoping? could you not be whistle-stoping? could they not be whistle-stoping?
Perfect	V-ing perfect
could I not have whistle-stoped? could you not have whistle-stoped? could she not have whistle-stoped? could we not have whistle-stoped? could you not have whistle-stoped? could they not have whistle-stoped?	could I not have been whistle-stoping? could you not have been whistle-stoping? could she not have been whistle-stoping? could we not have been whistle-stoping? could you not have been whistle-stoping? could they not have been whistle-stoping?