English verb conjugation
MUST UNDERWHELM

Regular verb: underwhelm - underwhelmed - underwhelmed

Affirmation

Simple form	V-ing form
I must underwhelm you must underwhelm he must underwhelm we must underwhelm you must underwhelm they must underwhelm	I must be underwhelming you must be underwhelming he must be underwhelming we must be underwhelming you must be underwhelming they must be underwhelming
Perfect	V-ing perfect
I must have underwhelmed you must have underwhelmed he must have underwhelmed we must have underwhelmed you must have underwhelmed they must have underwhelmed	I must have been underwhelming you must have been underwhelming he must have been underwhelming we must have been underwhelming you must have been underwhelming they must have been underwhelming

Negation

Simple form	V-ing form
I mustn't underwhelm you mustn't underwhelm he mustn't underwhelm we mustn't underwhelm you mustn't underwhelm they mustn't underwhelm	I mustn't be underwhelming you mustn't be underwhelming he mustn't be underwhelming we mustn't be underwhelming you mustn't be underwhelming they mustn't be underwhelming
Perfect	V-ing perfect
I mustn't have underwhelmed you mustn't have underwhelmed he mustn't have underwhelmed we mustn't have underwhelmed you mustn't have underwhelmed they mustn't have underwhelmed	I mustn't have been underwhelming you mustn't have been underwhelming he mustn't have been underwhelming we mustn't have been underwhelming you mustn't have been underwhelming they mustn't have been underwhelming

Interrogative form

Simple form	V-ing form
must I underwhelm? must you underwhelm? must he underwhelm? must we underwhelm? must you underwhelm? must they underwhelm?	must I be underwhelming? must you be underwhelming? must he be underwhelming? must we be underwhelming? must you be underwhelming? must they be underwhelming?
Perfect	V-ing perfect
must I have underwhelmed? must you have underwhelmed? must he have underwhelmed? must we have underwhelmed? must you have underwhelmed? must they have underwhelmed?	must I have been underwhelming? must you have been underwhelming? must he have been underwhelming? must we have been underwhelming? must you have been underwhelming? must they have been underwhelming?

Interro-negative form

Simple form	V-ing form
mustn't I underwhelm? mustn't you underwhelm? mustn't he underwhelm? mustn't we underwhelm? mustn't you underwhelm? mustn't they underwhelm?	mustn't I be underwhelming? mustn't you be underwhelming? mustn't he be underwhelming? mustn't we be underwhelming? mustn't you be underwhelming? mustn't they be underwhelming?
Perfect	V-ing perfect
mustn't I have underwhelmed? mustn't you have underwhelmed? mustn't he have underwhelmed? mustn't we have underwhelmed? mustn't you have underwhelmed? mustn't they have underwhelmed?	mustn't I have been underwhelming? mustn't you have been underwhelming? mustn't he have been underwhelming? mustn't we have been underwhelming? mustn't you have been underwhelming? mustn't they have been underwhelming?