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肯定 vs 确定 vs 一定 (sure / certain)
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Confidence differs from confirming a detail
- A friend predicts an arrival, while you have not confirmed the time.
- he他certainly一定will会come来；I我yet还not没confirm确定(concept of) time时间。 — certainly一定 expresses a confident prediction and confirm确定 refers to confirming the time.
A friend predicts an arrival, while you have not confirmed the time. What does 他一定会来；我还没确定时间。 communicate?
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一定 expresses a confident prediction and 确定 refers to confirming the time. 肯定 can also express confidence, and it has verb uses such as 肯定成绩. Word class depends on the construction; confident wording is not proof of the future.
Build the form
- The pattern in this lesson is to be certain肯定 vs confirm确定 vs certainly一定 (sure / certain). 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.
he他certainly一定will会come来。
Using the lesson pattern in this demonstrated example: He'll certainly come: 他 ____ 会来。
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Both 一定 and 肯定 can express confidence in the prediction. Confidence is not proof that the prediction must come true.
Read examples in context
I我yet还not没confirm确定。
- In the opening example, he他certainly一定will会come来；I我yet还not没confirm确定(concept of) time时间。: certainly一定 expresses a confident prediction and confirm确定 refers to confirming the time.
- Explain who acts, what is described and which time or group is relevant before choosing an English paraphrase.
Which is a VERB meaning “to confirm / be certain”?
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确定 = verb (confirm); 一定 / 肯定 = adverb of certainty.
Know the boundary
- to be certain肯定 can also express confidence, and it has verb uses such as to be certain肯定achievement成绩.
- Word class depends on the construction; confident wording is not proof of the future.
确定 can act as a verb (我还没确定).
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Yes — “to confirm / decide”: 我还没确定.
一定会来 guarantees the prediction cannot be wrong.
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肯定 can also express confidence, and it has verb uses such as 肯定成绩. Word class depends on the construction; confident wording is not proof of the future. 一定 expresses a confident prediction and 确定 refers to confirming the time.
Use the distinction
- certainly一定 expresses a confident prediction and confirm确定 refers to confirming the time.
- to be certain肯定 can also express confidence, and it has verb uses such as to be certain肯定achievement成绩. Word class depends on the construction; confident wording is not proof of the future.
Read the full reference: HSK 4 grammar — Comparing similar functions.
A friend predicts an arrival, while you have not confirmed the time. 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.