一旦
yí dàn
Once, if, in case
How to say “once… then…” in Chinese with 一旦 (yídàn)
一旦 (yídàn)⋯⋯，就 (jiù)⋯⋯
一旦 (yī dàn) — once… then…
HSK 5Conditional Statements
一旦 (yídàn)⋯⋯，就 (jiù)⋯⋯
HSK 5Conditional Statements一旦 (yī dàn) — once… then…
Rule structure
一旦 (yídàn)…就 (jiù)… means "once, as soon as" and implies a conditional relationship: if something happens (or becomes true), then a consequence immediately follows. Formal.
Rule structure
一旦 (yídàn)…就 (jiù)… means "once, as soon as" and implies a conditional relationship: if something happens (or becomes true), then a consequence immediately follows. Formal.
Examples
一旦开始，就不要放弃。
Yīdàn kāishǐ, jiù bùyào fàngqì.
Once you start, don’t give up.
Examples
一旦开始，就不要放弃。
Yīdàn kāishǐ, jiù bùyào fàngqì.
Once you start, don’t give up.
Practice
Build the sentence
Drag the characters to put them in the correct order
Characters
Words from this rule
Frequently asked questions
How do you say “once… then…” in Chinese with 一旦?
Use the structure: 一旦 (yídàn)⋯⋯，就 (jiù)⋯⋯. For example: 一旦开始，就不要放弃。 — “Once you start, don’t give up”.
What is an example sentence with this grammar rule?
一旦开始，就不要放弃。 — “Once you start, don’t give up”.
Which HSK level includes this grammar rule?
This grammar rule is part of HSK 5.
Tomyo
Learn Chinese grammar with smart reviews
Grammar explanations, exercises and spaced repetition — all in one app.
More HSK 5 grammar rules
了 — completed action with complement
Verb + Complement + 了 (le) + (Obj.)
坏了 — extremely, awfully
Verb / Adj. + 坏了 (huàile)
万一 — what if
万一 (wànyī) + (Undesirable) Condition + 怎么办 (zěnme bàn)？
就是 — even if…
就是 (jiùshì)⋯⋯，也 (yě)⋯⋯
还…呢 — still in progress
Subj. + 还 (hái) + Predicate + 呢 (ne)
有关的 — related to…
跟 (gēn) / 和 (hé) / 与 (yǔ) + Noun + 有关的 (yǒuguān de) + Noun
得很 — very, extremely
Adj. + 得很 (de hěn)
要不 — how about…?
要不 (yàobù) + Suggestion / Option