During this coming week, I’ll talk about situations in English when you don’t use an article (“a” or “an”).

“Cats are good companions”. “Running is good exercise”. “Learning English is hard”.

General descriptions and statements of opinion don’t take an article.

“I’ll make dinner”. “It’s time for breakfast”.

When you talk about meals. “Dinner was good”.

Mochi the Cat is a good companion and it looks like she’s ready for dinner.