Question

his sole income is what he earns by his pen change into a negative sentence​

Answer 1

$\huge\pink{\boxed{\green{\mathfrak{\overbrace{\underbrace{\fcolorbox{red}{aqua}{\underline{\pink{✯Answer✯}}}}}}}}}$

His sole income isn't what he earns by his pen.

Answer 2

Explanation:

His sole income is not what he earns by his pen.

This is the answer... Hope it helps u...