English verb conjugation
COULD DEFOLIATE

Regular verb: defoliate - defoliated - defoliated

Affirmation

Simple form	V-ing form
I could defoliate you could defoliate he could defoliate we could defoliate you could defoliate they could defoliate	I could be defoliating you could be defoliating he could be defoliating we could be defoliating you could be defoliating they could be defoliating
Perfect	V-ing perfect
I could have defoliated you could have defoliated he could have defoliated we could have defoliated you could have defoliated they could have defoliated	I could have been defoliating you could have been defoliating he could have been defoliating we could have been defoliating you could have been defoliating they could have been defoliating

Negation

Simple form	V-ing form
I couldn't defoliate you couldn't defoliate he couldn't defoliate we couldn't defoliate you couldn't defoliate they couldn't defoliate	I couldn't be defoliating you couldn't be defoliating he couldn't be defoliating we couldn't be defoliating you couldn't be defoliating they couldn't be defoliating
Perfect	V-ing perfect
I couldn't have defoliated you couldn't have defoliated he couldn't have defoliated we couldn't have defoliated you couldn't have defoliated they couldn't have defoliated	I couldn't have been defoliating you couldn't have been defoliating he couldn't have been defoliating we couldn't have been defoliating you couldn't have been defoliating they couldn't have been defoliating

Interrogative form

Simple form	V-ing form
could I defoliate? could you defoliate? could he defoliate? could we defoliate? could you defoliate? could they defoliate?	could I be defoliating? could you be defoliating? could he be defoliating? could we be defoliating? could you be defoliating? could they be defoliating?
Perfect	V-ing perfect
could I have defoliated? could you have defoliated? could he have defoliated? could we have defoliated? could you have defoliated? could they have defoliated?	could I have been defoliating? could you have been defoliating? could he have been defoliating? could we have been defoliating? could you have been defoliating? could they have been defoliating?

Interro-negative form

Simple form	V-ing form
couldn't I defoliate? couldn't you defoliate? couldn't he defoliate? couldn't we defoliate? couldn't you defoliate? couldn't they defoliate?	couldn't I be defoliating? couldn't you be defoliating? couldn't he be defoliating? couldn't we be defoliating? couldn't you be defoliating? couldn't they be defoliating?
Perfect	V-ing perfect
couldn't I have defoliated? couldn't you have defoliated? couldn't he have defoliated? couldn't we have defoliated? couldn't you have defoliated? couldn't they have defoliated?	couldn't I have been defoliating? couldn't you have been defoliating? couldn't he have been defoliating? couldn't we have been defoliating? couldn't you have been defoliating? couldn't they have been defoliating?