I could wet you could wet he could wet we could wet you could wet they could wet
V-ing form
I could be wetting you could be wetting he could be wetting we could be wetting you could be wetting they could be wetting
Perfect
I could have wet you could have wet he could have wet we could have wet you could have wet they could have wet
V-ing perfect
I could have been wetting you could have been wetting he could have been wetting we could have been wetting you could have been wetting they could have been wetting
Negation
Simple form
I couldn't wet you couldn't wet he couldn't wet we couldn't wet you couldn't wet they couldn't wet
V-ing form
I couldn't be wetting you couldn't be wetting he couldn't be wetting we couldn't be wetting you couldn't be wetting they couldn't be wetting
Perfect
I couldn't have wet you couldn't have wet he couldn't have wet we couldn't have wet you couldn't have wet they couldn't have wet
V-ing perfect
I couldn't have been wetting you couldn't have been wetting he couldn't have been wetting we couldn't have been wetting you couldn't have been wetting they couldn't have been wetting
Interrogative form
Simple form
could I wet? could you wet? could he wet? could we wet? could you wet? could they wet?
V-ing form
could I be wetting? could you be wetting? could he be wetting? could we be wetting? could you be wetting? could they be wetting?
Perfect
could I have wet? could you have wet? could he have wet? could we have wet? could you have wet? could they have wet?
V-ing perfect
could I have been wetting? could you have been wetting? could he have been wetting? could we have been wetting? could you have been wetting? could they have been wetting?
Interro-negative form
Simple form
couldn't I wet? couldn't you wet? couldn't he wet? couldn't we wet? couldn't you wet? couldn't they wet?
V-ing form
couldn't I be wetting? couldn't you be wetting? couldn't he be wetting? couldn't we be wetting? couldn't you be wetting? couldn't they be wetting?
Perfect
couldn't I have wet? couldn't you have wet? couldn't he have wet? couldn't we have wet? couldn't you have wet? couldn't they have wet?
V-ing perfect
couldn't I have been wetting? couldn't you have been wetting? couldn't he have been wetting? couldn't we have been wetting? couldn't you have been wetting? couldn't they have been wetting?