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How to Say ‘Must be by’ in Simplified Chinese

要在

yào zài

[yaow dzeye]

💬 Usage Tip: [要在...] often means "need to do something by..." when a time phrase follows. For example, [要在六点前到] means "need to arrive before 6."

Phrase Breakdown

yào

[yaow]

need to; must

Shows necessity or requirement, often used in rules, policies, and instructions.

Example

你要在规定时间内取消预订。

You need to cancel the reservation within the specified time.

zài

[dzeye]

at; by; before

In this pattern, 在 helps introduce the time by which something must be done.

Example

要在晚上八点前取消才不会收费。

You need to cancel by 8 p.m. so that you won't be charged.

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