lǎoshī shuō, zuò lǎoshī zuì zhòngyào de shì yào yǒu nàixīn.

to be

Breakdown of lǎoshī shuō, zuò lǎoshī zuì zhòngyào de shì yào yǒu nàixīn.

• 老师lǎoshī: teacher
• 有yǒu: to have
• 说shuō: to say

Questions & Answers about lǎoshī shuō, zuò lǎoshī zuì zhòngyào de shì yào yǒu nàixīn.

Why is 老师 repeated twice? Why not just say it once?

The two 老师 play different roles:

• The first 老师 in 老师说 is the subject: “The teacher said …”
• The second 老师 in 做老师 is inside the clause “to be a teacher”.

So the structure is:

• 老师说， → The teacher said,
• 做老师最重要的是要有耐心。 → The most important thing about being a teacher is to have patience.

You could replace the first 老师 with 他 / 她 if it was clear from context who you’re talking about:

• 他(她)说，做老师最重要的是要有耐心。

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What does 做 mean in 做老师? Why not just use 是老师?

做 here means “to work as / to be (in a role)”.

• 做老师 = to work as a teacher / to be a teacher
• 做饭 = to cook (literally: to do food)
• 做医生 = to work as a doctor

You could say 当老师 instead, which is very natural:

• 当老师最重要的是要有耐心。

是老师 usually means “is a teacher” as a simple fact about someone, not about the role in general. For this kind of “being in a role” idea, 做 / 当 are more idiomatic than 是 in this position.

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What is the function of 最重要的 and why do we need the 的?