English verb conjugation
COULD EMBANK

Regular verb: embank - embanked - embanked

Affirmation

Simple form	V-ing form
I could embank you could embank he could embank we could embank you could embank they could embank	I could be embanking you could be embanking he could be embanking we could be embanking you could be embanking they could be embanking
Perfect	V-ing perfect
I could have embanked you could have embanked he could have embanked we could have embanked you could have embanked they could have embanked	I could have been embanking you could have been embanking he could have been embanking we could have been embanking you could have been embanking they could have been embanking

Negation

Simple form	V-ing form
I couldn't embank you couldn't embank he couldn't embank we couldn't embank you couldn't embank they couldn't embank	I couldn't be embanking you couldn't be embanking he couldn't be embanking we couldn't be embanking you couldn't be embanking they couldn't be embanking
Perfect	V-ing perfect
I couldn't have embanked you couldn't have embanked he couldn't have embanked we couldn't have embanked you couldn't have embanked they couldn't have embanked	I couldn't have been embanking you couldn't have been embanking he couldn't have been embanking we couldn't have been embanking you couldn't have been embanking they couldn't have been embanking

Interrogative form

Simple form	V-ing form
could I embank? could you embank? could he embank? could we embank? could you embank? could they embank?	could I be embanking? could you be embanking? could he be embanking? could we be embanking? could you be embanking? could they be embanking?
Perfect	V-ing perfect
could I have embanked? could you have embanked? could he have embanked? could we have embanked? could you have embanked? could they have embanked?	could I have been embanking? could you have been embanking? could he have been embanking? could we have been embanking? could you have been embanking? could they have been embanking?

Interro-negative form

Simple form	V-ing form
couldn't I embank? couldn't you embank? couldn't he embank? couldn't we embank? couldn't you embank? couldn't they embank?	couldn't I be embanking? couldn't you be embanking? couldn't he be embanking? couldn't we be embanking? couldn't you be embanking? couldn't they be embanking?
Perfect	V-ing perfect
couldn't I have embanked? couldn't you have embanked? couldn't he have embanked? couldn't we have embanked? couldn't you have embanked? couldn't they have embanked?	couldn't I have been embanking? couldn't you have been embanking? couldn't he have been embanking? couldn't we have been embanking? couldn't you have been embanking? couldn't they have been embanking?