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 could not embank you could not embank he could not embank we could not embank you could not embank they could not embank	I could not be embanking you could not be embanking he could not be embanking we could not be embanking you could not be embanking they could not be embanking
Perfect	V-ing perfect
I could not have embanked you could not have embanked he could not have embanked we could not have embanked you could not have embanked they could not have embanked	I could not have been embanking you could not have been embanking he could not have been embanking we could not have been embanking you could not have been embanking they could not 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
could I not embank? could you not embank? could he not embank? could we not embank? could you not embank? could they not embank?	could I not be embanking? could you not be embanking? could he not be embanking? could we not be embanking? could you not be embanking? could they not be embanking?
Perfect	V-ing perfect
could I not have embanked? could you not have embanked? could he not have embanked? could we not have embanked? could you not have embanked? could they not have embanked?	could I not have been embanking? could you not have been embanking? could he not have been embanking? could we not have been embanking? could you not have been embanking? could they not have been embanking?