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除非 … ，才 … (only if / unless)
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A requirement need not be the sole requirement
- You will not go unless a friend goes.
- unless除非you你go去，I我only then才go去。 — The friend's going is treated as necessary for your going.
You will not go unless a friend goes. What does 除非你去，我才去。 communicate?
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The friend's going is treated as necessary for your going. This does not guarantee you will go whenever the friend does; other obstacles may remain. 除非…否则… gives another common way to state the restriction.
Build the form
- The pattern in this lesson is unless除非 … ，only then才 … (only if / unless). Locate it in the original interlinear examples below.
- Keep the words in their demonstrated positions; the pattern must fit the intended situation as well as the sentence form.
unless除非you你go去，I我only then才go去。
Using the lesson pattern in this demonstrated example: Unless you go, I won't: ____ 你去，我才去。
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除非 … ，才 … = unless / only if: 除非你去,我才去.
Read examples in context
- In the opening example, unless除非you你go去，I我only then才go去。: The friend's going is treated as necessary for your going.
- Explain who acts, what is described and which time or group is relevant before choosing an English paraphrase.
除非 names…
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The condition is necessary in this statement. It need not be sufficient or the only requirement.
Know the boundary
- This does not guarantee you will go whenever the friend does; other obstacles may remain.
- unless除非…otherwise否则… gives another common way to state the restriction.
除非 can also pair with 否则 (“unless …, otherwise …”).
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Yes: 除非…，才… and 除非…，否则… are both common.
The friend's going guarantees that you go, regardless of every other obstacle.
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This does not guarantee you will go whenever the friend does; other obstacles may remain. 除非…否则… gives another common way to state the restriction. The friend's going is treated as necessary for your going.
Use the distinction
- The friend's going is treated as necessary for your going.
- This does not guarantee you will go whenever the friend does; other obstacles may remain. unless除非…otherwise否则… gives another common way to state the restriction.
Read the full reference: HSK 4 grammar — Conditional statements.
You will not go unless a friend goes. Close the examples. Say a Mandarin response, then write it in Chinese. Explain briefly in English what the lesson’s pattern adds. Compare with the model, then change one detail and try again.
This is supported productive practice. Compare meaning and structure; your answer need not copy the model. A partner or teacher must hear the spoken response to comment on pronunciation.