English verb conjugation
MAY UNDERBID

Irregular verb: underbid - underbid - underbid

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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