Verb Reduplication: Why Chinese Repeats Verbs (看看, 试试)
Repeating a verb makes the action brief, light and casual — “have a little look,” “give it a try.” Three shapes: AA for one-syllable verbs (看看), V一V with 一 inserted (看一看), and ABAB for two-syllable verbs (研究研究 — the whole word, never 研研究究).
Why this trips learners up
One of the friendliest features of spoken Chinese: you can repeat a verb to make whatever you’re doing sound brief, light and low-pressure — “just have a little look,” “give it a quick try,” “let’s talk it over a bit.” It softens commands into invitations (你看看 = “have a look” rather than “look!”) and makes requests sound casual instead of demanding. There’s no equivalent in English — you reach for words like a little, briefly, or quick instead.
For one-syllable verbs there are two interchangeable shapes. The AA pattern simply doubles the verb, and the second copy goes neutral tone: 看看 (kànkan), 等等 (děngdeng), 尝尝 (chángchang). The V一V pattern slips a neutral 一 in between with the same meaning: 看一看, 等一等, 尝一尝. Pick whichever you like — 试试 and 试一试 are equally good.
For two-syllable verbs, repeat the whole word as a block — ABAB: 研究研究 (“look into it a bit”), 检查检查 (“give it a once-over”), 讨论讨论 (“talk it over”). The classic error is borrowing the adjective pattern: adjectives reduplicate AABB (高兴 → 高高兴兴), but verbs never do — 研研究究 ✗. And you never insert 一 into a two-syllable verb: it’s 讨论讨论, not 讨论一讨论.
One placement note: double the verb first, then add the object — 尝尝这个汤, 看看这本书. Don’t split the pair around the object.
The structure
Colour key
Each colour marks one grammatical role — and the same colour means the same role on every page in the Lab.
Examples in context
Real-world sentences, easiest first. Toggle pinyin or the translation, tap any word to see its role, or play the audio.
Tap a word to see its grammatical role.
nǐ 你 Subject děng 等 Verb deng 等 Verb wǒ 我 Object
Wait a sec for me (AA — 等等, second syllable neutral).
wǒ 我 Subject lái 来 Function word xiǎng 想 Verb xiang 想 Verb
Let me think it over a bit (AA — 想想).
nǐ 你 Subject cháng 尝 Verb chang 尝 Verb zhège tāng 这个汤 Object
Have a taste of this soup (AA + object — the object follows the doubled verb).
nǐ 你 Subject wén 闻 Verb yi 一 Function word wén 闻 Verb zhège wèidao 这个味道 Object
Give this smell a sniff (V一V — 闻一闻, 一 inserted).
nǐ 你 Subject bāng 帮 Verb wǒ 我 Object shǔ 数 Verb yi 一 Function word shǔ 数 Verb
Help me count them (V一V inside a serial verb — 数一数).
wǒmen 我们 Subject bǐ 比 Verb yi 一 Function word bǐ 比 Verb shéi 谁 Subject gāo 高 Adjective
Let’s see who’s taller (V一V — 比一比).
zhè jiàn shì 这件事 Object wǒmen 我们 Subject zài 再 Adverb yánjiū 研究 Verb yánjiū 研究 Verb
Let’s look into this matter a bit more (ABAB — the two-syllable 研究 repeats whole).
nǐ 你 Subject bāng 帮 Verb wǒ 我 Object jiǎnchá 检查 Verb jiǎnchá 检查 Verb zhè piān wénzhāng 这篇文章 Object hǎo ma 好吗 Question
Could you look this article over for me? (ABAB — 检查检查, a casual request).
Common mistakes
Why it happens: Two-syllable verbs repeat as a whole block — ABAB: 研究研究, 检查检查. The character-by-character AABB pattern (研研究究) belongs to adjectives (高高兴兴), never verbs.
Why it happens: The inserted 一 only works for single-character verbs (看一看, 等一等). A two-syllable verb just doubles as ABAB — 讨论讨论, never 讨论一讨论.
Why it happens: Double the verb first, then add the object — 尝尝这个, 看看这本书. Don’t split the doubled verb around the object (尝这个尝 ✗).
Compare & contrast
| One-syllable verb — AA or V一V | Two-syllable verb — ABAB (whole word) | The difference |
|---|---|---|
| 说说 / 说一说shuōshuo / shuō yi shuō | 介绍介绍jièshào jièshào | 说说 / 说一说 = “say a little about it” — a one-syllable verb, both shapes fine. 介绍介绍 = “give a little introduction” — a two-syllable verb, so the whole word repeats (never 介介绍绍, never 介绍一介绍). |
| 坐坐 / 坐一坐zuòzuo / zuò yi zuò | 了解了解liǎojiě liǎojiě | 坐坐 / 坐一坐 = “sit a while” (one syllable). 了解了解 = “get to know it a bit” (two syllables, ABAB). |
Try it yourself
Say “Have a look at this book.” (double the verb, then the object) — tap the words into order.
Related patterns
Quick reference card
Verb Reduplication: Why Chinese Repeats Verbs (看看, 试试) grammar.merrymandarin.com A pocket summary — print it and keep it by your desk.