English verb conjugation
COULD REVOKE

Regular verb: revoke - revoked - revoked

Affirmation

Simple form	V-ing form
I could revoke you could revoke he could revoke we could revoke you could revoke they could revoke	I could be revoking you could be revoking he could be revoking we could be revoking you could be revoking they could be revoking
Perfect	V-ing perfect
I could have revoked you could have revoked he could have revoked we could have revoked you could have revoked they could have revoked	I could have been revoking you could have been revoking he could have been revoking we could have been revoking you could have been revoking they could have been revoking

Negation

Simple form	V-ing form
I couldn't revoke you couldn't revoke he couldn't revoke we couldn't revoke you couldn't revoke they couldn't revoke	I couldn't be revoking you couldn't be revoking he couldn't be revoking we couldn't be revoking you couldn't be revoking they couldn't be revoking
Perfect	V-ing perfect
I couldn't have revoked you couldn't have revoked he couldn't have revoked we couldn't have revoked you couldn't have revoked they couldn't have revoked	I couldn't have been revoking you couldn't have been revoking he couldn't have been revoking we couldn't have been revoking you couldn't have been revoking they couldn't have been revoking

Interrogative form

Simple form	V-ing form
could I revoke? could you revoke? could he revoke? could we revoke? could you revoke? could they revoke?	could I be revoking? could you be revoking? could he be revoking? could we be revoking? could you be revoking? could they be revoking?
Perfect	V-ing perfect
could I have revoked? could you have revoked? could he have revoked? could we have revoked? could you have revoked? could they have revoked?	could I have been revoking? could you have been revoking? could he have been revoking? could we have been revoking? could you have been revoking? could they have been revoking?

Interro-negative form

Simple form	V-ing form
couldn't I revoke? couldn't you revoke? couldn't he revoke? couldn't we revoke? couldn't you revoke? couldn't they revoke?	couldn't I be revoking? couldn't you be revoking? couldn't he be revoking? couldn't we be revoking? couldn't you be revoking? couldn't they be revoking?
Perfect	V-ing perfect
couldn't I have revoked? couldn't you have revoked? couldn't he have revoked? couldn't we have revoked? couldn't you have revoked? couldn't they have revoked?	couldn't I have been revoking? couldn't you have been revoking? couldn't he have been revoking? couldn't we have been revoking? couldn't you have been revoking? couldn't they have been revoking?