Would the sentence 牛肉はよく食べません。/ I don't eat beef often. be:
- grammatically incorrect because よく is used only in affirmative sentences?
- grammatically correct, but unnatural (Using あまり would be preferable)?
- perfectly acceptable?
Online searches led me to one site that used よく with a negative verb; others said that the use is unnatural; and most used it only with affirmative verbs, without comment on its use in this context.