English verb conjugation
COULD WHARF

Regular verb: wharf - wharfed - wharfed

Affirmation

Simple form	V-ing form
I could wharf you could wharf he could wharf we could wharf you could wharf they could wharf	I could be wharfing you could be wharfing he could be wharfing we could be wharfing you could be wharfing they could be wharfing
Perfect	V-ing perfect
I could have wharfed you could have wharfed he could have wharfed we could have wharfed you could have wharfed they could have wharfed	I could have been wharfing you could have been wharfing he could have been wharfing we could have been wharfing you could have been wharfing they could have been wharfing

Negation

Simple form	V-ing form
I couldn't wharf you couldn't wharf he couldn't wharf we couldn't wharf you couldn't wharf they couldn't wharf	I couldn't be wharfing you couldn't be wharfing he couldn't be wharfing we couldn't be wharfing you couldn't be wharfing they couldn't be wharfing
Perfect	V-ing perfect
I couldn't have wharfed you couldn't have wharfed he couldn't have wharfed we couldn't have wharfed you couldn't have wharfed they couldn't have wharfed	I couldn't have been wharfing you couldn't have been wharfing he couldn't have been wharfing we couldn't have been wharfing you couldn't have been wharfing they couldn't have been wharfing

Interrogative form

Simple form	V-ing form
could I wharf? could you wharf? could he wharf? could we wharf? could you wharf? could they wharf?	could I be wharfing? could you be wharfing? could he be wharfing? could we be wharfing? could you be wharfing? could they be wharfing?
Perfect	V-ing perfect
could I have wharfed? could you have wharfed? could he have wharfed? could we have wharfed? could you have wharfed? could they have wharfed?	could I have been wharfing? could you have been wharfing? could he have been wharfing? could we have been wharfing? could you have been wharfing? could they have been wharfing?

Interro-negative form

Simple form	V-ing form
couldn't I wharf? couldn't you wharf? couldn't he wharf? couldn't we wharf? couldn't you wharf? couldn't they wharf?	couldn't I be wharfing? couldn't you be wharfing? couldn't he be wharfing? couldn't we be wharfing? couldn't you be wharfing? couldn't they be wharfing?
Perfect	V-ing perfect
couldn't I have wharfed? couldn't you have wharfed? couldn't he have wharfed? couldn't we have wharfed? couldn't you have wharfed? couldn't they have wharfed?	couldn't I have been wharfing? couldn't you have been wharfing? couldn't he have been wharfing? couldn't we have been wharfing? couldn't you have been wharfing? couldn't they have been wharfing?