English verb conjugation
OUGHT TO UNDERBID

Irregular verb: underbid - underbid - underbid

Affirmation

Simple form	V-ing form
I ought to underbid you ought to underbid she ought to underbid we ought to underbid you ought to underbid they ought to underbid	I ought to be underbidding you ought to be underbidding she ought to be underbidding we ought to be underbidding you ought to be underbidding they ought to be underbidding
Perfect	V-ing perfect
I ought to have underbid you ought to have underbid she ought to have underbid we ought to have underbid you ought to have underbid they ought to have underbid	I ought to have been underbidding you ought to have been underbidding she ought to have been underbidding we ought to have been underbidding you ought to have been underbidding they ought to have been underbidding

Negation

Simple form	V-ing form
I oughtn't to underbid you oughtn't to underbid she oughtn't to underbid we oughtn't to underbid you oughtn't to underbid they oughtn't to underbid	I oughtn't to be underbidding you oughtn't to be underbidding she oughtn't to be underbidding we oughtn't to be underbidding you oughtn't to be underbidding they oughtn't to be underbidding
Perfect	V-ing perfect
I oughtn't to have underbid you oughtn't to have underbid she oughtn't to have underbid we oughtn't to have underbid you oughtn't to have underbid they oughtn't to have underbid	I oughtn't to have been underbidding you oughtn't to have been underbidding she oughtn't to have been underbidding we oughtn't to have been underbidding you oughtn't to have been underbidding they oughtn't to have been underbidding

Interrogative form

Simple form	V-ing form
ought to I underbid? ought to you underbid? ought to she underbid? ought to we underbid? ought to you underbid? ought to they underbid?	ought to I be underbidding? ought to you be underbidding? ought to she be underbidding? ought to we be underbidding? ought to you be underbidding? ought to they be underbidding?
Perfect	V-ing perfect
ought to I have underbid? ought to you have underbid? ought to she have underbid? ought to we have underbid? ought to you have underbid? ought to they have underbid?	ought to I have been underbidding? ought to you have been underbidding? ought to she have been underbidding? ought to we have been underbidding? ought to you have been underbidding? ought to they have been underbidding?

Interro-negative form

Simple form	V-ing form
oughtn't I to underbid? oughtn't you to underbid? oughtn't she to underbid? oughtn't we to underbid? oughtn't you to underbid? oughtn't they to underbid?	oughtn't I to be underbidding? oughtn't you to be underbidding? oughtn't she to be underbidding? oughtn't we to be underbidding? oughtn't you to be underbidding? oughtn't they to be underbidding?
Perfect	V-ing perfect
oughtn't I to have underbid? oughtn't you to have underbid? oughtn't she to have underbid? oughtn't we to have underbid? oughtn't you to have underbid? oughtn't they to have underbid?	oughtn't I to have been underbidding? oughtn't you to have been underbidding? oughtn't she to have been underbidding? oughtn't we to have been underbidding? oughtn't you to have been underbidding? oughtn't they to have been underbidding?