上手です

be good at

→ 上手だ
phrase Rare #22,663
be good at A polite expression meaning someone is skilled at doing something. The activity or skill is often marked with が, as in 歌が上手です (be good at singing).
JA: 私は料理が上手です。
EN: I am good at cooking.

太郎ギターを弾くのがクラスで一番上手です

Taro is the best guitarist in his class.

トムメアリー歌がとても上手です

Both Tom and Mary are very good singers.

上手です

You're good at it.

— パディントン2 (2017)

山田さんはギター弾ける歌も上手です

Mr. Yamada can play the guitar and sing well, too.

バスケットボール上手です

Are you good at basketball?

彼女はバイオリン大変上手です

She plays the violin very well.

彼はギター大変上手です

He plays the guitar very well.

チェス上手です

Are you good at chess?