I can curette you can curette he can curette we can curette you can curette they can curette
V-ing form
I can be curetting you can be curetting he can be curetting we can be curetting you can be curetting they can be curetting
Perfect
I can have curetted you can have curetted he can have curetted we can have curetted you can have curetted they can have curetted
V-ing perfect
I can have been curetting you can have been curetting he can have been curetting we can have been curetting you can have been curetting they can have been curetting
Negation
Simple form
I can't curette you can't curette he can't curette we can't curette you can't curette they can't curette
V-ing form
I can't be curetting you can't be curetting he can't be curetting we can't be curetting you can't be curetting they can't be curetting
Perfect
I can't have curetted you can't have curetted he can't have curetted we can't have curetted you can't have curetted they can't have curetted
V-ing perfect
I can't have been curetting you can't have been curetting he can't have been curetting we can't have been curetting you can't have been curetting they can't have been curetting
Interrogative form
Simple form
can I curette? can you curette? can he curette? can we curette? can you curette? can they curette?
V-ing form
can I be curetting? can you be curetting? can he be curetting? can we be curetting? can you be curetting? can they be curetting?
Perfect
can I have curetted? can you have curetted? can he have curetted? can we have curetted? can you have curetted? can they have curetted?
V-ing perfect
can I have been curetting? can you have been curetting? can he have been curetting? can we have been curetting? can you have been curetting? can they have been curetting?
Interro-negative form
Simple form
can't I curette? can't you curette? can't he curette? can't we curette? can't you curette? can't they curette?
V-ing form
can't I be curetting? can't you be curetting? can't he be curetting? can't we be curetting? can't you be curetting? can't they be curetting?
Perfect
can't I have curetted? can't you have curetted? can't he have curetted? can't we have curetted? can't you have curetted? can't they have curetted?
V-ing perfect
can't I have been curetting? can't you have been curetting? can't he have been curetting? can't we have been curetting? can't you have been curetting? can't they have been curetting?