He is always faultfinding with others.

He is always finding fault with me.

He is proud to be an ally of the LGBT community.

He likes to drink Arak.

He utilized his project management skills to start a new business.

Do you understand the necessity of this project?

That information is unnecessary.

That information is completely unnecessary.

He thinks that war is a necessary evil.

He is an excellent helmsman, who guided the ship safely to the harbor.