Measure Words & Talking About Family

You’ll be able to

Explain why Mandarin requires a measure word between a number and a noun
Choose the correct measure word, including 口 (kǒu) for counting family members
Build “number + measure word + noun” phrases to describe a family

Why you cannot count nouns directly

In English you say “three brothers.” In Mandarin you cannot put a number straight against a noun — you must insert a measure word (量词, liàngcí), a classifier that fits the shape or category of the thing. The pattern is number + measure word + noun: 三个哥哥 (sān gè gēge, “three older brothers”). The most common, all-purpose measure word is 个 (gè), used for people and many everyday objects: 一个人 (yí gè rén, “one person”), 两个朋友 (liǎng gè péngyou, “two friends”).

Measure words match the noun

Different nouns take different measure words, often tied to shape or type. 本 (běn) counts bound volumes: 一本书 (yì běn shū, “one book”). 张 (zhāng) counts flat things: 一张照片 (yì zhāng zhàopiàn, “one photo”). 位 (wèi) is a polite classifier for respected people: 一位老师 (yí wèi lǎoshī, “one teacher”). For a household, Mandarin uses a special measure word: 口 (kǒu), literally “mouth,” to count family members — 五口人 (wǔ kǒu rén, “five people [in the family]”).

Note on 二 (èr) versus 两 (liǎng)

The number “two” has two forms. Use 二 (èr) for counting and numbers themselves — 第二 (dì-èr, “second”), 十二 (shí-èr, “twelve”). But before a measure word, use 两 (liǎng): 两个妹妹 (liǎng gè mèimei, “two younger sisters”), not èr gè. Also note that 一 (yī) changes tone before measure words — it becomes second tone before a fourth tone (yí gè) and fourth tone before others (yì běn) — another echo of the sandhi habit from Lesson 1.

Worked example

You want to tell a classmate, “My family has five people: dad, mom, two older brothers, and me.” Build the key counting phrases in Mandarin.

1.To count household members, use the family measure word 口 (kǒu): 五口人 (wǔ kǒu rén) = “five people in the family.”
2.Introduce it with 我家有 (wǒ jiā yǒu, “my family has”): 我家有五口人 (Wǒ jiā yǒu wǔ kǒu rén).
3.For the two brothers, “two” before a measure word is 两 (liǎng), and people take 个 (gè): 两个哥哥 (liǎng gè gēge).
4.List the members: 爸爸、妈妈、两个哥哥和我 (bàba, māma, liǎng gè gēge hé wǒ).

Answer: 我家有五口人：爸爸、妈妈、两个哥哥和我。(Wǒ jiā yǒu wǔ kǒu rén: bàba, māma, liǎng gè gēge hé wǒ.) “My family has five people: dad, mom, two older brothers, and me.” Note 口 (kǒu) for household members and 两 (liǎng), not 二 (èr), before the measure word 个.

Checkpoint

Which phrase correctly says “two younger sisters”?

Tip

When you truly do not know the right measure word, 个 (gè) is the safe default and will be understood. But learn the high-frequency specific ones — 本 (běn) for books, 张 (zhāng) for flat objects, 位 (wèi) for people you respect, 口 (kǒu) for family members — because using them correctly sounds far more natural.

Checkpoint

In the sentence 我家有四口人 (Wǒ jiā yǒu sì kǒu rén), what job is 口 (kǒu) doing?

On the exam

Family-description prompts are extremely common on AP Chinese. Memorize a fluent self-introduction of your household using 口 (kǒu) and correct measure words, e.g. 我家有五口人 (Wǒ jiā yǒu wǔ kǒu rén). It is an easy, reliable way to open the interpersonal task strongly.

Answer the 2 checkpoints as you read.