English verb conjugation
COULD MARCEL

Regular verb: marcel - marceled - marceled

Affirmation

Simple form	V-ing form
I could marcel you could marcel he could marcel we could marcel you could marcel they could marcel	I could be marceling you could be marceling he could be marceling we could be marceling you could be marceling they could be marceling
Perfect	V-ing perfect
I could have marceled you could have marceled he could have marceled we could have marceled you could have marceled they could have marceled	I could have been marceling you could have been marceling he could have been marceling we could have been marceling you could have been marceling they could have been marceling

Negation

Simple form	V-ing form
I could not marcel you could not marcel he could not marcel we could not marcel you could not marcel they could not marcel	I could not be marceling you could not be marceling he could not be marceling we could not be marceling you could not be marceling they could not be marceling
Perfect	V-ing perfect
I could not have marceled you could not have marceled he could not have marceled we could not have marceled you could not have marceled they could not have marceled	I could not have been marceling you could not have been marceling he could not have been marceling we could not have been marceling you could not have been marceling they could not have been marceling

Interrogative form

Simple form	V-ing form
could I marcel? could you marcel? could he marcel? could we marcel? could you marcel? could they marcel?	could I be marceling? could you be marceling? could he be marceling? could we be marceling? could you be marceling? could they be marceling?
Perfect	V-ing perfect
could I have marceled? could you have marceled? could he have marceled? could we have marceled? could you have marceled? could they have marceled?	could I have been marceling? could you have been marceling? could he have been marceling? could we have been marceling? could you have been marceling? could they have been marceling?

Interro-negative form

Simple form	V-ing form
could I not marcel? could you not marcel? could he not marcel? could we not marcel? could you not marcel? could they not marcel?	could I not be marceling? could you not be marceling? could he not be marceling? could we not be marceling? could you not be marceling? could they not be marceling?
Perfect	V-ing perfect
could I not have marceled? could you not have marceled? could he not have marceled? could we not have marceled? could you not have marceled? could they not have marceled?	could I not have been marceling? could you not have been marceling? could he not have been marceling? could we not have been marceling? could you not have been marceling? could they not have been marceling?