English verb conjugation
COULD EXFOLIATE

Regular verb: exfoliate - exfoliated - exfoliated

Affirmation

Simple form	V-ing form
I could exfoliate you could exfoliate he could exfoliate we could exfoliate you could exfoliate they could exfoliate	I could be exfoliating you could be exfoliating he could be exfoliating we could be exfoliating you could be exfoliating they could be exfoliating
Perfect	V-ing perfect
I could have exfoliated you could have exfoliated he could have exfoliated we could have exfoliated you could have exfoliated they could have exfoliated	I could have been exfoliating you could have been exfoliating he could have been exfoliating we could have been exfoliating you could have been exfoliating they could have been exfoliating

Negation

Simple form	V-ing form
I couldn't exfoliate you couldn't exfoliate he couldn't exfoliate we couldn't exfoliate you couldn't exfoliate they couldn't exfoliate	I couldn't be exfoliating you couldn't be exfoliating he couldn't be exfoliating we couldn't be exfoliating you couldn't be exfoliating they couldn't be exfoliating
Perfect	V-ing perfect
I couldn't have exfoliated you couldn't have exfoliated he couldn't have exfoliated we couldn't have exfoliated you couldn't have exfoliated they couldn't have exfoliated	I couldn't have been exfoliating you couldn't have been exfoliating he couldn't have been exfoliating we couldn't have been exfoliating you couldn't have been exfoliating they couldn't have been exfoliating

Interrogative form

Simple form	V-ing form
could I exfoliate? could you exfoliate? could he exfoliate? could we exfoliate? could you exfoliate? could they exfoliate?	could I be exfoliating? could you be exfoliating? could he be exfoliating? could we be exfoliating? could you be exfoliating? could they be exfoliating?
Perfect	V-ing perfect
could I have exfoliated? could you have exfoliated? could he have exfoliated? could we have exfoliated? could you have exfoliated? could they have exfoliated?	could I have been exfoliating? could you have been exfoliating? could he have been exfoliating? could we have been exfoliating? could you have been exfoliating? could they have been exfoliating?

Interro-negative form

Simple form	V-ing form
couldn't I exfoliate? couldn't you exfoliate? couldn't he exfoliate? couldn't we exfoliate? couldn't you exfoliate? couldn't they exfoliate?	couldn't I be exfoliating? couldn't you be exfoliating? couldn't he be exfoliating? couldn't we be exfoliating? couldn't you be exfoliating? couldn't they be exfoliating?
Perfect	V-ing perfect
couldn't I have exfoliated? couldn't you have exfoliated? couldn't he have exfoliated? couldn't we have exfoliated? couldn't you have exfoliated? couldn't they have exfoliated?	couldn't I have been exfoliating? couldn't you have been exfoliating? couldn't he have been exfoliating? couldn't we have been exfoliating? couldn't you have been exfoliating? couldn't they have been exfoliating?