English verb conjugation
COULD CURETTE

Regular verb: curette - curetted - curetted

Affirmation

Simple form	V-ing form
I could curette you could curette he could curette we could curette you could curette they could curette	I could be curetting you could be curetting he could be curetting we could be curetting you could be curetting they could be curetting
Perfect	V-ing perfect
I could have curetted you could have curetted he could have curetted we could have curetted you could have curetted they could have curetted	I could have been curetting you could have been curetting he could have been curetting we could have been curetting you could have been curetting they could have been curetting

Negation

Simple form	V-ing form
I couldn't curette you couldn't curette he couldn't curette we couldn't curette you couldn't curette they couldn't curette	I couldn't be curetting you couldn't be curetting he couldn't be curetting we couldn't be curetting you couldn't be curetting they couldn't be curetting
Perfect	V-ing perfect
I couldn't have curetted you couldn't have curetted he couldn't have curetted we couldn't have curetted you couldn't have curetted they couldn't have curetted	I couldn't have been curetting you couldn't have been curetting he couldn't have been curetting we couldn't have been curetting you couldn't have been curetting they couldn't have been curetting

Interrogative form

Simple form	V-ing form
could I curette? could you curette? could he curette? could we curette? could you curette? could they curette?	could I be curetting? could you be curetting? could he be curetting? could we be curetting? could you be curetting? could they be curetting?
Perfect	V-ing perfect
could I have curetted? could you have curetted? could he have curetted? could we have curetted? could you have curetted? could they have curetted?	could I have been curetting? could you have been curetting? could he have been curetting? could we have been curetting? could you have been curetting? could they have been curetting?

Interro-negative form

Simple form	V-ing form
couldn't I curette? couldn't you curette? couldn't he curette? couldn't we curette? couldn't you curette? couldn't they curette?	couldn't I be curetting? couldn't you be curetting? couldn't he be curetting? couldn't we be curetting? couldn't you be curetting? couldn't they be curetting?
Perfect	V-ing perfect
couldn't I have curetted? couldn't you have curetted? couldn't he have curetted? couldn't we have curetted? couldn't you have curetted? couldn't they have curetted?	couldn't I have been curetting? couldn't you have been curetting? couldn't he have been curetting? couldn't we have been curetting? couldn't you have been curetting? couldn't they have been curetting?