1. contraction of 'is not'
「is not」的縮寫形式
He isn't here right now.
他現在不在這裡。
The weather isn't very good today.
今天天氣不太好。
My phone isn't working.
我的手機壞了。
Isn't Meaning（定義、用法、例句與發音）
isn't
verb
快速理解
What does "Isn't" mean?What are 2-3 core uses of "Isn't"?
「isn't」是「is not」的縮寫，主要用於否定句或疑問句，表達「不是」或「不存在」的狀態。
- 1
否定狀態或事實
EN: It isn't raining today.
翻譯: 今天沒有下雨。
- 2
否定身分或屬性
EN: He isn't a teacher.
翻譯: 他不是老師。
- 3
用於否定疑問句
EN: Isn't she coming to the party?
翻譯: 她不是要來參加派對嗎？
- 4
表達不存在或沒有
EN: There isn't any milk left.
翻譯: 沒有牛奶剩下了。
小提醒：注意：「isn't」是「is not」的縮寫，不可用於肯定句。在正式書寫中，有時會避免使用縮寫。
發音（How to Pronounce "Isn't" in English）
How to pronounce "Isn't" in English?"Isn't" US vs UK pronunciation
點擊下方的 US / UK 按鈕可播放發音。
Real-life Examples of "Isn't" from YouTube Videos
South Korea would accept Trump-Kim deal to freeze North Korea’s nuclear programme | BBC News
BBC News
“>>. What happened in the past isn't relevant now. What matters is restoring trust between the North and South, especially since the last government's stance toward North Korea was so hostile.”
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Definitions（定義）
What are the definitions of "Isn't"?How does "Isn't" change by context?
2. used to form negative questions
用於構成否定疑問句
Isn't that your book?
那不是你的書嗎？
Isn't she coming with us?
她不跟我們一起來嗎？
Isn't it time to leave?
是不是該走了？
3. used in negative tags after positive statements
用於肯定陳述句後的否定附加問句
It's a beautiful day, isn't it?
今天天氣真好，不是嗎？
She's your sister, isn't she?
她是你的妹妹，對吧？
You're coming tomorrow, aren't you? (Note: 'aren't' used with 'you')
你明天會來，對吧？
4. used to express surprise or disagreement (often rhetorical)
用於表達驚訝或不同意（常為修辭性問句）
Isn't that amazing!
那真是太神奇了！
Why isn't anyone helping him?
為什麼沒人幫他？
Grammar & Patterns（句型）
What are common sentence patterns for "Isn't"?How to make natural sentences with "Isn't"?
| Pattern | Meaning | Example |
|---|---|---|
| isn't + noun/adjective | 不是… | This isn't my book. (這不是我的書。) |
| isn't + V-ing | 沒有在… | He isn't working today. (他今天沒有在工作。) |
| isn't it? (tag question) | 不是嗎？ | It's a beautiful day, isn't it? (今天天氣真好，不是嗎？) |
| isn't there/here? | 這裡/那裡沒有…嗎？ | There's a problem, isn't there? (有個問題，不是嗎？) |
| isn't + subject + V-ing? | …沒有在…嗎？ | Isn't she coming with us? (她沒有要和我們一起來嗎？) |
用法說明
How is "Isn't" different from similar structures?What usage mistakes are common with "Isn't"?
isn't vs. is not vs. ain't
- isn't 是 is not 的標準縮寫形式，常用於口語和非正式書寫。
- is not 是完整形式，語氣較正式，否定意味更強。
- ain't 是非標準的方言性縮寫，可代替 isn't、aren't 等，但在正式寫作或考試中應避免使用。
對比例句： EN: He isn't coming to the party. 翻譯: 他不會來參加派對。
EN:He is not coming to the party under any circumstances.
翻譯:無論如何他都不會來參加派對。
EN:This isn't the right way.
翻譯:這不是正確的方法。
EN:This ain't the right way.
翻譯:這壓根兒不對路。
總結建議
在正式場合或寫作中，建議使用 is not 以顯莊重；口語或非正式文體可使用 isn't，並應避免在正式語境中使用 ain't。
易混淆對比
What is the difference between "Isn't" and similar words?How to choose "Isn't" vs alternatives?
isn't vs aren't
isn't 用於第三人稱單數主詞（he, she, it, 單數名詞）；aren't 用於複數主詞（you, we, they, 複數名詞）或第二人稱單數 you。
isn't vs wasn't
isn't 用於現在式，描述現在的事實或狀態；wasn't 用於過去式，描述過去的事實或狀態。
isn't vs don't
isn't 否定 be 動詞（is），描述狀態或身份；don't 否定一般動詞（do），描述動作或習慣。
口語用法
How is "Isn't" used in spoken English?What is the spoken vs formal difference for "Isn't"?
引述
在口語中，常用來引述或轉述他人的否定說法，特別是帶有懷疑或驚訝的語氣。 EN: "He said he isn't coming tonight." 翻譯: 「他說他今晚不來了。」
EN:"Wait, she isn't happy with the plan?"
翻譯:「等等，她對這個計畫不滿意嗎？」
語氣強調
透過重音或語調變化，強調否定的部分，以澄清誤會或表達強烈立場。 EN: "I said I isn't going, not that I am!" 翻譯: 「我說的是我不去，不是我要去！」
EN:"This isn't what I ordered."
翻譯:「這不是我點的東西。」
停頓填充
在思考或組織語句時，作為一個自然的停頓點，後面再接上解釋或更正。 EN: "Well, it isn't... I mean, it's not exactly wrong, but..." 翻譯: 「嗯，這不是... 我的意思是，它不完全錯，但是...」
EN:"The problem isn't... let me put it another way."
翻譯:「問題不在於... 讓我換個方式說。」
注意：在正式書寫中（如學術論文、商業報告），應避免使用縮寫形式 "isn't"，而應使用完整的 "is not"。
常見短語
What common collocations use "Isn't"?What fixed phrases with "Isn't" should I remember?
isn't it
isn't it?
用於尋求確認或表示同意的附加問句
isn't that
isn't that [noun phrase/adjective]
用於強調或指出某個事實，常帶有驚訝或反問的語氣
why isn't
why isn't [subject] [verb-ing/complement]?
詢問某事為何沒有發生或某人為何不做某事
isn't there
isn't there [noun phrase]?
用於確認或詢問某物是否存在或可用
isn't just
isn't just [noun/adjective]
用於否定某事物僅限於某種簡單的描述，暗示其更為複雜或重要
if it isn't
if it isn't [person's name/description]!
用於驚訝地認出或打招呼，是一種口語表達
isn't one to
isn't one to [verb]
描述某人不常或有某種傾向不做某事
常見錯誤
What are common mistakes with "Isn't"?Which "Isn't" sentences look correct but are wrong?
×He isn't like apples.
✓He doesn't like apples.
當表達主語的習慣或喜好時，應使用助動詞 "do/does" 來構成否定句，而不是 "isn't"。"isn't" 主要用於否定狀態或身份。
×They isn't here.
✓They aren't here.
主語 "They" 是複數，對應的 be 動詞應為 "are"，其否定縮寫形式是 "aren't"，而不是 "isn't"。
×He isn't went to school yesterday.
✓He didn't go to school yesterday.
描述過去發生的動作時，應使用過去式動詞並搭配助動詞 "did" 來構成否定句。"isn't" 是現在式，不能與過去式動詞連用。
×He isn't got no money.
✓He doesn't have any money. / He has no money.
英語中通常避免雙重否定。"isn't got" 是錯誤結構，且 "no" 與否定動詞連用會形成雙重否定。正確說法是使用 "doesn't have" 搭配 "any"，或使用肯定動詞 "has" 搭配 "no"。
×It isn't rain now.
✓It isn't raining now.
描述正在進行的動作或狀態時，應使用現在進行式 (be + V-ing)。"rain" 是動詞原形，不能直接跟在 "isn't" 後面。
×She is your sister, isn't she? (但用於否定主句時) He isn't coming, isn't he?
✓He isn't coming, is he?
附加問句的原則是「前肯後否，前否後肯」。當主要子句是否定句（如 "isn't coming"）時，附加問句應使用肯定的 "is he?"，而不是重複否定。
詞形變化
What are the word forms of "Isn't"?What are tense/participle forms of "Isn't"?
isn't(3rd_singular)not being(present_participle)wasn't(past)not been(past_participle)