牛乳が

milk

→ 牛乳
phrase Uncommon #10,986
milk 牛乳 means “milk,” while が marks it as the subject or thing being described. It is often used with verbs such as 飲めない (cannot drink), 買える (can buy), and ある/残っている (there is/is left).
JA: 朝は牛乳が飲みたい。
EN: I want to drink milk in the morning.

牛乳が残ってる

There's still some milk left.

— es[エス] (2001)

牛乳が傷んでるよ

The milk has gone bad.

牛乳が悪くなった

The milk has gone bad.

牛乳がちょっと残ってる

There’s a little milk left.

牛乳が腐った

The milk has gone bad.

には少しだけ牛乳が残っていた

There was only a little milk left in the bottle.

僕は牛乳がダメだ

I can't have milk.

冷蔵庫にまだ牛乳が残っている気になっていた

I was wondering if there was still any milk left in the refrigerator.

彼はパンと牛乳がどうにか買えるだけのお金を持っていた

He had just enough money to buy bread and milk.

僕たち牛乳が飲めないんだ

We can’t drink milk.