English verb conjugation
COULD UNDERSELL

Irregular verb: undersell - undersold - undersold

Affirmation

Simple form	V-ing form
I could undersell you could undersell he could undersell we could undersell you could undersell they could undersell	I could be underselling you could be underselling he could be underselling we could be underselling you could be underselling they could be underselling
Perfect	V-ing perfect
I could have undersold you could have undersold he could have undersold we could have undersold you could have undersold they could have undersold	I could have been underselling you could have been underselling he could have been underselling we could have been underselling you could have been underselling they could have been underselling

Negation

Simple form	V-ing form
I could not undersell you could not undersell he could not undersell we could not undersell you could not undersell they could not undersell	I could not be underselling you could not be underselling he could not be underselling we could not be underselling you could not be underselling they could not be underselling
Perfect	V-ing perfect
I could not have undersold you could not have undersold he could not have undersold we could not have undersold you could not have undersold they could not have undersold	I could not have been underselling you could not have been underselling he could not have been underselling we could not have been underselling you could not have been underselling they could not have been underselling

Interrogative form

Simple form	V-ing form
could I undersell? could you undersell? could he undersell? could we undersell? could you undersell? could they undersell?	could I be underselling? could you be underselling? could he be underselling? could we be underselling? could you be underselling? could they be underselling?
Perfect	V-ing perfect
could I have undersold? could you have undersold? could he have undersold? could we have undersold? could you have undersold? could they have undersold?	could I have been underselling? could you have been underselling? could he have been underselling? could we have been underselling? could you have been underselling? could they have been underselling?

Interro-negative form

Simple form	V-ing form
could I not undersell? could you not undersell? could he not undersell? could we not undersell? could you not undersell? could they not undersell?	could I not be underselling? could you not be underselling? could he not be underselling? could we not be underselling? could you not be underselling? could they not be underselling?
Perfect	V-ing perfect
could I not have undersold? could you not have undersold? could he not have undersold? could we not have undersold? could you not have undersold? could they not have undersold?	could I not have been underselling? could you not have been underselling? could he not have been underselling? could we not have been underselling? could you not have been underselling? could they not have been underselling?