English verb conjugation
SHALL UNDERSELL

Irregular verb: undersell - undersold - undersold

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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