English verb conjugation
COULD UNDERWHELM

Regular verb: underwhelm - underwhelmed - underwhelmed

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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