English verb conjugation
COULD SUPEREROGATE

Regular verb: supererogate - supererogated - supererogated

Affirmation

Simple form	V-ing form
I could supererogate you could supererogate he could supererogate we could supererogate you could supererogate they could supererogate	I could be supererogating you could be supererogating he could be supererogating we could be supererogating you could be supererogating they could be supererogating
Perfect	V-ing perfect
I could have supererogated you could have supererogated he could have supererogated we could have supererogated you could have supererogated they could have supererogated	I could have been supererogating you could have been supererogating he could have been supererogating we could have been supererogating you could have been supererogating they could have been supererogating

Negation

Simple form	V-ing form
I could not supererogate you could not supererogate he could not supererogate we could not supererogate you could not supererogate they could not supererogate	I could not be supererogating you could not be supererogating he could not be supererogating we could not be supererogating you could not be supererogating they could not be supererogating
Perfect	V-ing perfect
I could not have supererogated you could not have supererogated he could not have supererogated we could not have supererogated you could not have supererogated they could not have supererogated	I could not have been supererogating you could not have been supererogating he could not have been supererogating we could not have been supererogating you could not have been supererogating they could not have been supererogating

Interrogative form

Simple form	V-ing form
could I supererogate? could you supererogate? could he supererogate? could we supererogate? could you supererogate? could they supererogate?	could I be supererogating? could you be supererogating? could he be supererogating? could we be supererogating? could you be supererogating? could they be supererogating?
Perfect	V-ing perfect
could I have supererogated? could you have supererogated? could he have supererogated? could we have supererogated? could you have supererogated? could they have supererogated?	could I have been supererogating? could you have been supererogating? could he have been supererogating? could we have been supererogating? could you have been supererogating? could they have been supererogating?

Interro-negative form

Simple form	V-ing form
could I not supererogate? could you not supererogate? could he not supererogate? could we not supererogate? could you not supererogate? could they not supererogate?	could I not be supererogating? could you not be supererogating? could he not be supererogating? could we not be supererogating? could you not be supererogating? could they not be supererogating?
Perfect	V-ing perfect
could I not have supererogated? could you not have supererogated? could he not have supererogated? could we not have supererogated? could you not have supererogated? could they not have supererogated?	could I not have been supererogating? could you not have been supererogating? could he not have been supererogating? could we not have been supererogating? could you not have been supererogating? could they not have been supererogating?