English verb conjugation
SHALL UNDERBID

Irregular verb: underbid - underbid - underbid

Affirmation

Simple form	V-ing form
I'll underbid you'll underbid he'll underbid we'll underbid you'll underbid they'll underbid	I'll be underbidding you'll be underbidding he'll be underbidding we'll be underbidding you'll be underbidding they'll be underbidding
Perfect	V-ing perfect
I'll have underbid you'll have underbid he'll have underbid we'll have underbid you'll have underbid they'll have underbid	I'll have been underbidding you'll have been underbidding he'll have been underbidding we'll have been underbidding you'll have been underbidding they'll have been underbidding

Negation

Simple form	V-ing form
I shan't underbid you shan't underbid he shan't underbid we shan't underbid you shan't underbid they shan't underbid	I shan't be underbidding you shan't be underbidding he shan't be underbidding we shan't be underbidding you shan't be underbidding they shan't be underbidding
Perfect	V-ing perfect
I shan't have underbid you shan't have underbid he shan't have underbid we shan't have underbid you shan't have underbid they shan't have underbid	I shan't have been underbidding you shan't have been underbidding he shan't have been underbidding we shan't have been underbidding you shan't have been underbidding they shan't have been underbidding

Interrogative form

Simple form	V-ing form
shall I underbid? shall you underbid? shall he underbid? shall we underbid? shall you underbid? shall they underbid?	shall I be underbidding? shall you be underbidding? shall he be underbidding? shall we be underbidding? shall you be underbidding? shall they be underbidding?
Perfect	V-ing perfect
shall I have underbid? shall you have underbid? shall he have underbid? shall we have underbid? shall you have underbid? shall they have underbid?	shall I have been underbidding? shall you have been underbidding? shall he have been underbidding? shall we have been underbidding? shall you have been underbidding? shall they have been underbidding?

Interro-negative form

Simple form	V-ing form
shan't I underbid? shan't you underbid? shan't he underbid? shan't we underbid? shan't you underbid? shan't they underbid?	shan't I be underbidding? shan't you be underbidding? shan't he be underbidding? shan't we be underbidding? shan't you be underbidding? shan't they be underbidding?
Perfect	V-ing perfect
shan't I have underbid? shan't you have underbid? shan't he have underbid? shan't we have underbid? shan't you have underbid? shan't they have underbid?	shan't I have been underbidding? shan't you have been underbidding? shan't he have been underbidding? shan't we have been underbidding? shan't you have been underbidding? shan't they have been underbidding?