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March 24, 2026
该(該)gāi(gai1)
该 (gāi) is used to express obligation or necessity, conveying meanings such as 'should', 'ought to', or 'must'. It can also indicate that something is due or deserved, often appearing in contexts where a recommendation or expectation is made.
Strokes8Radical讠Frequency#129DifficultyMedium
Cultural Note
In Chinese culture, the concept of obligation is often tied to social harmony and collective responsibility, making 该 a useful word in discussions about duties and expectations within relationships or communities.
Memory Tip
Imagine a person named 'Guy' who always says, 'You should do this.' This connects the pronunciation 'gāi' to the idea of obligation. The character 该 resembles a structure with a roof (the top component) indicating something important that ought to happen underneath.
Meanings of 该
gāi(gai1)
1should
2ought to
Exercise 1 of 2
Listen & Choose the Meaning
Choose the correct answer:
About 该
该Simplified
該Traditional
8Strokes
讠Radical
代词dàicípronoun (pron.)Part of Speech
#129Frequency Rank
HSK 3.0L3ElementaryTOCFLL2YCTL3HSKKL1CEFRA1
Podcast: 该
Podcast: 该
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AI Study Notes for 该
Quick Contrast
该 (gāi) vs 应该 (yīnggāi) — use 该 for a more direct expression of obligation, while 应该 adds an element of suggestion or recommendation.
Usage Notes
Common mistakes include confusing 该 with other modal verbs like 能 (néng) meaning 'can' or 要 (yào) meaning 'want'. Although it can be used in both formal and informal contexts, it's essential to use it appropriately to convey obligation rather than mere suggestion.
HSK Study Tips
While 该 is not an HSK vocabulary word, it connects to HSK Level 3 words related to obligation, such as 应该 (yīnggāi, 'should'). Students should practice using it in sentences to express necessity or recommendations.
Common Mistakes
Learners often confuse 该 with 还 (hái, 'still' or 'also') in sentences, leading to improper usage. For example, saying '我该还去吗?' (Wǒ gāi hái qù ma?) instead of '我该去吗?' (Wǒ gāi qù ma?) which correctly means 'Should I go?'.
AI-enhanced 2026-03-24
Pronunciation of 该
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Simplified form of 該. Phonosemantic compound. 言 represents the meaning and 亥 represents the sound.
1The meaning half讠 carries the sense.
2The sound half亥 is there for the reading, not the meaning.
3The giveawayspeech
4On the record aspictophonetic.
Every clue here comes from the character's recorded structure — nothing is guessed.
Want the full history of 该? Jason searches the paleographic record, weighs the competing accounts and judges the popular story.
Charged once for this character — everyone reads it afterwards.
Exercise 1 of 1
Character Formation Type
What type of character formation is 该?
Decomposition of 该
IDS Structure⿰讠亥
该Full Character
=
讠yan2
left
亥hai4
right
Exercise 1 of 2
Identify the Components
Which of these is a component of 该?
How to say should in Chinese
“should” in Chinese is该gāi
该 (gāi) is used to express obligation or necessity, conveying meanings such as 'should', 'ought to', or 'must'. It can also indicate that something is due or deserved, often appearing in contexts where a recommendation or expectation is made.
When to use 该
Common mistakes include confusing 该 with other modal verbs like 能 (néng) meaning 'can' or 要 (yào) meaning 'want'. Although it can be used in both formal and informal contexts, it's essential to use it appropriately to convey obligation rather than mere suggestion.
该 or something close to it
该 (gāi) vs 应该 (yīnggāi) — use 该 for a more direct expression of obligation, while 应该 adds an element of suggestion or recommendation.
What learners get wrong
Learners often confuse 该 with 还 (hái, 'still' or 'also') in sentences, leading to improper usage. For example, saying '我该还去吗?' (Wǒ gāi hái qù ma?) instead of '我该去吗?' (Wǒ gāi qù ma?) which correctly means 'Should I go?'.
Write 该
该
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Practice writing 该 stroke by stroke. Watch the animation to learn the stroke order, then try writing it yourself.
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Grammar Patterns of 该
该 functions as a pronoun — it stands in for a noun. Use it in the same positions as nouns (subject before verb, object after). Plurals are formed by adding 们 (我们, 他们). It carries 10 related meanings, each with its own usage notes below. The example sentences below show it in action, with practice buttons (Listen, Practice Writing, Practice Speaking) on every line.
