Is it grammatically correct to say omae ga yorobe?


おまえ が喜べ You're happy/you rejoice




Yes, おまえが喜べ is grammatically correct, but おまえ is a rude way to address a
person and 喜べ is in the imperative form. Overall, the sentence is far from
polite, and sounds like you're demanding an action. Unless you actually want
to mean that on purpose, it's safer to say either

> 幸せそうですね

or

> 楽しそうですね

