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 couldn't supererogate you couldn't supererogate he couldn't supererogate we couldn't supererogate you couldn't supererogate they couldn't supererogate	I couldn't be supererogating you couldn't be supererogating he couldn't be supererogating we couldn't be supererogating you couldn't be supererogating they couldn't be supererogating
Perfect	V-ing perfect
I couldn't have supererogated you couldn't have supererogated he couldn't have supererogated we couldn't have supererogated you couldn't have supererogated they couldn't have supererogated	I couldn't have been supererogating you couldn't have been supererogating he couldn't have been supererogating we couldn't have been supererogating you couldn't have been supererogating they couldn't 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
couldn't I supererogate? couldn't you supererogate? couldn't he supererogate? couldn't we supererogate? couldn't you supererogate? couldn't they supererogate?	couldn't I be supererogating? couldn't you be supererogating? couldn't he be supererogating? couldn't we be supererogating? couldn't you be supererogating? couldn't they be supererogating?
Perfect	V-ing perfect
couldn't I have supererogated? couldn't you have supererogated? couldn't he have supererogated? couldn't we have supererogated? couldn't you have supererogated? couldn't they have supererogated?	couldn't I have been supererogating? couldn't you have been supererogating? couldn't he have been supererogating? couldn't we have been supererogating? couldn't you have been supererogating? couldn't they have been supererogating?