"The apples are good."

Translation: La pomoj estas bonaj.

[JohnTheWizard]

We get it, Duo, you like apples, ok?

[AilurusHush]

I said 'la pomoj bonas' and it counted.

[Laums12]

Omg you can tell I've been away from Esperanto too long. Stared at this for too long wondering if it would be "laj pomoj estas bonaj" LOL

[Rae.F]

I've always wondered why "la" is invariable.

[Nari1102]

Would "La pomo bonas" be correct if it was just one apple? If yes, would "La pomoj bonasj" be correct for this question (that refers to more than apple)?

[Rae.F]

Turning adjectives into verbs like that doesn't really work the way you want it to. Think of the English "hammer". "He hammers" does not mean "He is a hammer", it means "He uses a thing as though it were a hammer". That's how verbing works in Esperanto.

That said, verbs don't pluralize like that. In any given tense, there is only one conjugation form.

La pomo estas bona.
La pomoj estas bonaj.

So even if you could turn "bona" into a verb that means something useful, it would still be

La pomo bonas.
La pomoj bonas.