English verb conjugation
COULD TROOP

Regular verb: troop - trooped - trooped

Affirmation

Simple form	V-ing form
I could troop you could troop he could troop we could troop you could troop they could troop	I could be trooping you could be trooping he could be trooping we could be trooping you could be trooping they could be trooping
Perfect	V-ing perfect
I could have trooped you could have trooped he could have trooped we could have trooped you could have trooped they could have trooped	I could have been trooping you could have been trooping he could have been trooping we could have been trooping you could have been trooping they could have been trooping

Negation

Simple form	V-ing form
I could not troop you could not troop he could not troop we could not troop you could not troop they could not troop	I could not be trooping you could not be trooping he could not be trooping we could not be trooping you could not be trooping they could not be trooping
Perfect	V-ing perfect
I could not have trooped you could not have trooped he could not have trooped we could not have trooped you could not have trooped they could not have trooped	I could not have been trooping you could not have been trooping he could not have been trooping we could not have been trooping you could not have been trooping they could not have been trooping

Interrogative form

Simple form	V-ing form
could I troop? could you troop? could he troop? could we troop? could you troop? could they troop?	could I be trooping? could you be trooping? could he be trooping? could we be trooping? could you be trooping? could they be trooping?
Perfect	V-ing perfect
could I have trooped? could you have trooped? could he have trooped? could we have trooped? could you have trooped? could they have trooped?	could I have been trooping? could you have been trooping? could he have been trooping? could we have been trooping? could you have been trooping? could they have been trooping?

Interro-negative form

Simple form	V-ing form
could I not troop? could you not troop? could he not troop? could we not troop? could you not troop? could they not troop?	could I not be trooping? could you not be trooping? could he not be trooping? could we not be trooping? could you not be trooping? could they not be trooping?
Perfect	V-ing perfect
could I not have trooped? could you not have trooped? could he not have trooped? could we not have trooped? could you not have trooped? could they not have trooped?	could I not have been trooping? could you not have been trooping? could he not have been trooping? could we not have been trooping? could you not have been trooping? could they not have been trooping?