是老师

is a teacher

→ 是
phrase Common #5,373
is a teacher In context, 是老师 can also introduce what teachers do or use a place for.
CH: 她是老师。
EN: She is a teacher.

现在她是老师

She is a teacher now.

— 白丝带 (2009)

这屋是老师办公和睡觉的

This room is where the teacher works and sleeps.

— 一个都不能少 (1999)

她是老师的宝贝。

She’s the teacher’s darling.

我说她是老师,她就是老师

If I say she's a teacher, then she's a teacher.

— 一个都不能少 (1999)

我以为你是老师。

I thought you were a teacher.

我的兄弟是老师。

My brother is a teacher.

我的妹妹是老师。

My younger sister is a teacher.

你是老师你管不了他?

You're his teacher—can't you control him?

— 一个都不能少 (1999)

你说你是山里来的老师拿什么证明你是老师?

You say you're a teacher from the mountains, but what proof do you have that you're really a teacher?

— 一个都不能少 (1999)

我的哥哥是老师。

My older brother is a teacher.

客人很多,大部分都是老师的同学和朋友。

There are a lot of guests, most of whom are the teacher’s classmates and friends.

他当时已经是老师了

He was already a teacher at the time.

— 大病 (2017)

你是老师吗?

Are you a teacher?

我知道你是老师。

I know you are a teacher.

我们是老师,

We are teachers.

— 这个男人来自地球 (2007)

我的弟弟是老师。

My younger brother is a teacher.

我父亲是老师。

My father is a teacher.

他和我是老师.

He and I are teachers.

您是老师,还是学生?

Are you a teacher or a student?

我的一个兄弟是老师,其他都是律师。

One of my brothers is a teacher, and the others are lawyers.