万一…就…

HSK 5
  • Conditionals

Structure (结构 jiégòu)

万一Hypothetical, (Subject)Result

Meaning (意思 yìsi)

The structure 万一…就… is used to express a hypothetical about an unlikely negative situation and its consequences.

Explanation (解释 jiěshì)

This structure is used to introduce a hypothesis with a very low probability of occurring, typically an undesirable situation. 万一 (wànyī) carries a meaning similar to "just in case" or "what if" in English.

The second clause with (jiù) states the consequence or course of action if that unfavorable situation actually occurs. This is an expression used to prepare for the worst-case scenario.

Examples (例句 lìjù)(5)

  1. 万一我们迷路了,就打电话求助。
    繁: 萬一我們迷路了,就打電話求助。Wànyī wǒmen mílù le, jiù diànhuà qiúzhù.

    If we get lost, we'll call for help.

  2. 万一你忘了,我就提醒你。
    繁: 萬一你忘了,我就提醒你。Wànyī wàng le, jiù tíxǐng nǐ.

    If you happen to forget, I will remind you.

  3. 万一明天下大雨,比赛就取消了。
    繁: 萬一明天下大雨,比賽就取消了。Wànyī míngtiān xià dàyǔ, bǐsài jiù qǔxiāo le.

    If it happens to rain heavily tomorrow, the match will be cancelled.

  4. 万一我没带钱包,你就先帮我付钱。
    繁: 萬一我沒帶錢包,你就先幫我付錢。Wànyī méi dài qiánbāo, jiù xiān bāng fùqián.

    If by chance I didn't bring my wallet, you'll help me pay first.

  5. 万一电脑坏了,我的报告就写不完了。
    繁: 萬一電腦壞了,我的報告就寫不完了。Wànyī diànnǎo huài le, de bàogào jiù xiě bu wán le.

    If the computer breaks down, I won't be able to finish writing my report.

Common mistakes

  • Wrong:万一明天天气好,我们就去公园。
    Correct:如果明天天气好,我们就去公园。

    万一 is used for negative hypotheticals that are unlikely to occur; for ordinary or positive hypotheticals, use 如果 instead.

  • Wrong:我就给你打电话,万一我迟到。
    Correct:万一我迟到,我就给你打电话。

    The hypothetical clause with 万一 must come before the result clause; 万一 cannot be placed at the end of the sentence like in Vietnamese.