HSK 2 Comparative Sentences: Expressing Exact and Relative Differences with 比 (bǐ)

Why Add a Complement to a Comparison?

Basic comparative sentences in Chinese tell the listener which of two items has more of a quality, such as stating that one person is taller or one item is cheaper. In real conversations, however, speakers frequently need to specify the size of that gap. You might want to say that a flight is two hours faster, a jacket is twenty yuan more expensive, or winter in the north is much colder.

In the HSK Level 2 syllabus, this pattern is categorized under special sentence types as the second subform of Comparative Sentences 1, linking two compared items with an adjective followed by either a quantity complement or a degree complement.

Subform 1: Stating Exact Differences with Quantity Complements

When you know the exact numerical difference between A and B, use a quantity complement (数量补语, shùliàng bǔyǔ). A quantity complement consists of a number and a measure word (plus an optional noun, such as 钱 qián for money). It attaches directly to the right of the adjective.

Notice how English puts the measurement before the comparative adjective (for example, 'three years older' or 'five minutes earlier'), whereas Chinese states the general quality first and specifies the number afterward.

Subform 2: Expressing Relative Differences with Degree Complements

When you do not have or do not need an exact number, you can indicate whether the difference between A and B is large or small by placing a degree complement (程度补语, chéngdù bǔyǔ) or indefinite quantity expression after the adjective.

• Large difference: 得多 (de duō) or 多了 (duō le) — Placed after the adjective to mean 'much more [adjective]' or 'a lot more [adjective]'. Both are common in everyday speech; 多了 (duō le) sounds slightly more conversational.
• Small difference: 一点儿 (yìdiǎnr) or 一些 (yìxiē) — Placed after the adjective to mean 'a little more [adjective]' or 'slightly more [adjective]'. Note that while traditional grammar sometimes classifies 一点儿 (yìdiǎnr) and 一些 (yìxiē) as indefinite quantity complements, in HSK Level 2 comparative practice they serve alongside 得多 (de duō) and 多了 (duō le) to scale the degree of difference.

Key Contrasts and Common Learner Errors

Two rules govern word order and modifier choice in this pattern. Violating either one produces an unnatural sentence that native speakers immediately notice.

For an ordinary direct 比 comparison, do not use 很大 or 非常大 after B to mean “much bigger”. Use 大得多 or 大多了. The restriction concerns this construction and meaning, rather than every larger sentence that happens to contain 比. 很 in a non-comparative adjective predicate may also be weakly stressed rather than a strong “very”.

Note that certain comparative adverbs such as 更 (gèng, even more) or 还 (hái, still more) can appear before the adjective in broader Chinese grammar, so the restriction specifically targets absolute degree adverbs like 很 (hěn) and 非常 (fēicháng).

Second, never copy English word order by placing the number and measure word in front of the adjective. The adjective must come first, followed by the quantity complement.

Asking Questions and Practical Usage

To ask a yes-no question about a stated difference, add 吗: 这件衣服比那件贵二十块钱吗？ To ask for the size of the gap, choose a question phrase that fits the measurement: 贵多少？ for price, 大几岁？ for age, or 早几分钟？ for a time difference. There is no single question word that replaces every kind of complement.

• Use a quantity complement when comparing measurable facts: ages, prices, heights, weights, or arrival times.
• Use 得多 (de duō) or 多了 (duō le) when making a strong recommendation or contrasting two clearly unequal options.
• Use 一点儿 (yìdiǎnr) to soften a comparison or to make a polite request, such as noting that one size is slightly smaller.

Frequently asked questions