English verb conjugation
COULD PREBID

Irregular verb: prebid - prebid - prebid

Affirmation

Simple form	V-ing form
I could prebid you could prebid she could prebid we could prebid you could prebid they could prebid	I could be prebiding you could be prebiding she could be prebiding we could be prebiding you could be prebiding they could be prebiding
Perfect	V-ing perfect
I could have prebid you could have prebid she could have prebid we could have prebid you could have prebid they could have prebid	I could have been prebiding you could have been prebiding she could have been prebiding we could have been prebiding you could have been prebiding they could have been prebiding

Negation

Simple form	V-ing form
I couldn't prebid you couldn't prebid she couldn't prebid we couldn't prebid you couldn't prebid they couldn't prebid	I couldn't be prebiding you couldn't be prebiding she couldn't be prebiding we couldn't be prebiding you couldn't be prebiding they couldn't be prebiding
Perfect	V-ing perfect
I couldn't have prebid you couldn't have prebid she couldn't have prebid we couldn't have prebid you couldn't have prebid they couldn't have prebid	I couldn't have been prebiding you couldn't have been prebiding she couldn't have been prebiding we couldn't have been prebiding you couldn't have been prebiding they couldn't have been prebiding

Interrogative form

Simple form	V-ing form
could I prebid? could you prebid? could she prebid? could we prebid? could you prebid? could they prebid?	could I be prebiding? could you be prebiding? could she be prebiding? could we be prebiding? could you be prebiding? could they be prebiding?
Perfect	V-ing perfect
could I have prebid? could you have prebid? could she have prebid? could we have prebid? could you have prebid? could they have prebid?	could I have been prebiding? could you have been prebiding? could she have been prebiding? could we have been prebiding? could you have been prebiding? could they have been prebiding?

Interro-negative form

Simple form	V-ing form
couldn't I prebid? couldn't you prebid? couldn't she prebid? couldn't we prebid? couldn't you prebid? couldn't they prebid?	couldn't I be prebiding? couldn't you be prebiding? couldn't she be prebiding? couldn't we be prebiding? couldn't you be prebiding? couldn't they be prebiding?
Perfect	V-ing perfect
couldn't I have prebid? couldn't you have prebid? couldn't she have prebid? couldn't we have prebid? couldn't you have prebid? couldn't they have prebid?	couldn't I have been prebiding? couldn't you have been prebiding? couldn't she have been prebiding? couldn't we have been prebiding? couldn't you have been prebiding? couldn't they have been prebiding?