附加問句英文 | Question Tags: 15 Rules Taiwan Learners Need (2026)

Taiwan’s standardized English exams — GEPT, TOEIC, and high school entrance tests — all feature question tags, and they trip up even advanced learners. The reason isn’t that the rules are complicated; it’s that there are about 15 distinct patterns hiding inside what looks like one simple rule. A B1 learner who only knows the basic flip (positive → negative) will get 80% right. Learning the other 5 patterns gets you to 100%.

What Are Question Tags? | 什麼是附加問句？

Question tags are short yes-or-no questions tacked onto the end of statements. Native speakers use them constantly in conversation — to check facts, to soften a request, or to invite someone to agree. You’ll hear them in meetings, in casual chat, and in customer service interactions all day long in English-speaking environments.

The grammatical structure is always: auxiliary verb + pronoun. “You’re coming tonight, aren’t you?” That final “aren’t you” is the question tag. Notice it uses the same auxiliary (“are” from “you’re”) and turns it into a question with a pronoun (“you”).

British English uses question tags far more often than American English, but both varieties have them. Since Taiwan’s English curriculum draws from both, you’ll see them in every major exam and in business correspondence with clients in the UK, Hong Kong, Singapore, and Australia.

The Core Rule | 核心規則：肯定→否定，否定→肯定

Every question tag follows one master principle: the polarity flips.

• Rule 1 — Positive statement → negative tag: “She works at a hospital, doesn’t she?“
• Rule 2 — Negative statement → positive tag: “He can’t swim, can he?“

That’s it for the foundation. But there are 13 more rules inside that foundation, and each one handles a specific situation that the basic flip doesn’t cover.

Rule 3 — The tag always uses the same auxiliary as the main clause. If the statement uses “have,” the tag uses “have.” If it uses “can,” the tag uses “can.” Never mix them: “She has finished, hasn’t she?” — not “didn’t she?”

Rule 4 — The subject in the tag is always a pronoun, never a noun. “Your boss is coming, isn’t he?” — never “isn’t your boss?” This trips up many Taiwan learners who translate directly from Chinese sentence structures where subject nouns can repeat.

If the statement has no auxiliary verb (present simple and past simple with “be” excluded), you supply do/does/did in the tag. “She speaks English, doesn’t she?” The verb “speaks” gets no tag — “speaks she?” is not English. You build the tag with “does” because the statement is present simple, third person singular.

Question Tags Across All Tenses | 各時態的附加問句

Once you know the core rule, applying it across tenses is mechanical. Here are the five tense patterns that appear most often on Taiwan exams:

• Rule 5 — Present simple: “She works here, doesn’t she?” / “They don’t understand, do they?“
• Rule 6 — Past simple: “You called me yesterday, didn’t you?“
• Rule 7 — Present perfect: “We’ve met before, haven’t we?“
• Rule 8 — Present continuous: “It’s raining outside, isn’t it?“
• Rule 9 — Modal verbs: “We should leave now, shouldn’t we?” / “She can drive, can’t she?“

The most common exam trap is present perfect. “He has been to Tokyo” → the tag is “hasn’t he?” — not “didn’t he?” The tag mirrors the perfect auxiliary “has,” not the main verb “been.” This is where students lose marks: they notice the action (“been”) and reach for “did.”

If you want to go deeper on how tenses interact with grammar structures, the present simple vs. present continuous guide on this site covers the auxiliary verb patterns that feed directly into question tags.

5 Special Cases Taiwan Learners Get Wrong | 台灣學習者常犯的5個特殊情況

The basic flip handles most situations. These five cases are where that rule breaks down — and where exam questions are designed to catch you.

Rule 10 — “I am” → “aren’t I?” (never “amn’t I?”)
“I’m the first to arrive, aren’t I?” This is a historical quirk in English. “Amn’t I?” is technically logical but almost never accepted in standard written English — you’d only hear it in some Irish dialects. On any Taiwan exam, use “aren’t I?”

Rule 11 — “Let’s” → “shall we?”
“Let’s take a break, shall we?” The “let’s” construction is an invitation to do something together. The tag doesn’t follow the positive-negative flip at all — it always uses “shall we?” regardless of context.

Rule 12 — Imperatives → “will you?” or “won’t you?”
“Open the window, will you?” or “Please be quiet, won’t you?” Commands directed at “you” use “will you?” (neutral) or “won’t you?” (more polite, softer). These do NOT use the positive-negative flip because there is no auxiliary in the main clause to mirror.

Rule 13 — “There is/are” constructions
“There’s a problem with this file, isn’t there?” The tag uses “there” as its pronoun — not “it.” “There are several options, aren’t there?” This is one of the most commonly missed patterns on GEPT writing sections.

Rule 14 — Negative contractions in the statement
“It isn’t cold enough, is it?” The statement is already negative (because of “isn’t”), so the tag flips positive. The trap here is that learners sometimes misread “isn’t” as positive because they focus on the noun rather than the verb. Always check: is there a “not” in the main clause? If yes, the tag is positive.

Rising vs. Falling Intonation | 升調 vs 降調

Written exams test the grammar structure. Speaking tests — and real conversations — test intonation. This is Rule 15 and the one that separates B1 competence from B2 fluency.

Falling intonation (降調): Your voice drops on the tag. You already know the answer and you’re looking for the listener to confirm. “You’re from Taipei, aren’t you? ↘” — you’re pretty sure they are. This is the more common pattern.

Rising intonation (升調): Your voice rises on the tag. You’re genuinely asking — you don’t know and you want the information. “The meeting is at 3, isn’t it? ↗” — you forgot and you’re checking.

In Taiwan’s GEPT oral test, this distinction matters. Examiners listen for whether your intonation matches the conversational context. Using rising intonation when the context makes you sound certain, or falling intonation when you clearly don’t know the answer, will cost you marks on naturalness.

The British Council’s “English In A Minute” series on question tags demonstrates both patterns with authentic native speaker audio — genuinely useful for training your ear before a speaking exam.

Question Tags in Reported Speech | 附加問句與間接引語

When question tags appear inside reported speech, they convert to indirect question form. “She asked whether it was cold, wasn’t it?” becomes reported as “She asked if it was cold.” The tag disappears in indirect speech — reported questions don’t carry the polarity flip. If you’re studying both structures together, the reported speech guide here covers exactly how direct questions transform when they move inside a subordinate clause.

20 Practice Sentences | 20個練習句

Read each sentence and identify the correct tag before looking at the answer. Cover the right side of each row as you go through.

Sentences 3, 5, 7, 10, 15, and 19 cover the special cases from the previous section. If you got those six right, you’ve moved past the basic flip and into the 15-rule level.

Question tags reward consistent review more than marathon study sessions. The Cambridge Dictionary’s grammar reference on tags has additional exercises sorted by difficulty level — good for drilling after you’ve internalized the rules here. Once the 15 patterns stop requiring conscious thought, you’ll find yourself reaching for question tags naturally in conversation: a quiet but reliable sign that your English grammar is working the way a native speaker’s does.

Sources | 參考資料

1. British Council — Question Tags (B1–B2) — Grammar reference and practice exercises from the British Council’s LearnEnglish platform.
2. Cambridge Dictionary — Tags (British Grammar Today) — Full grammar notes on question tags, declarative questions, and response tags.
3. The Sound of English — Question Tag Intonation — Audio guide to rising and falling intonation patterns on question tags, with native speaker examples.