白 bái Chinese Grammar

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Grammar · HSK 5
Grammar Point · HSK 5

白 bái — “In Vain”

The adverb 白 bái doesn’t mean white here — it signifies an action “with no effect” or “in vain,” similar to the concept of white having no color. It’s typically used to modify an action verb and indicates doing something that ultimately yields no result.

白 bái in vain Chinese grammar

白 bái sits right before the verb it modifies, and the sentence almost always ends in 了 le to mark that the wasted effort is complete.

1 Structure

白 bái + Verb + 了 le

白 bái is often used with one-syllable verbs such as 做 zuò “to do,” 说 shuō “to speak,” and 买 mǎi “to buy.”

我wǒ不知道bùzhīdào这家zhè jiā店diàn礼拜一lǐbàiyī休息xiūxi，白bái去qù了le
I did not know that this store is closed on Mondays, so I went there for nothing.
老师lǎoshī说shuō明天míngtiān的de考试kǎoshì取消qǔxiāo，我wǒ昨晚zuówǎn的de书shū都dōu白bái读dú了le
The teacher said tomorrow’s exam is canceled. Everything I studied last night was for nothing.
你nǐ如果rúguǒ不bù回来huílái吃chī应该yīnggāi先xiān跟gēn我wǒ说shuō，现在xiànzài我wǒ这些zhè xiē菜cài都dōu白bái做zuò了le
If you’re not coming back for dinner, you should have told me first. Now I’ve made all these dishes in vain.
三十sānshí岁suì了le还hái不知道bùzhīdào怎么zěnme洗头xǐtóu，你nǐ真的zhēnde是shì白bái活huó了le
You’re already 30 years old and still don’t know how to wash your hair. You’re truly living in vain.
说shuō也yě是shì白bái说shuō，还hái不如bùrú不bù说shuō
Speaking is just pointless; it’s better not to say anything.
A common set phrase / idiom-like expression.

白 bái + SV + 了 le

听说tīngshuō会议huìyì临时línshí取消qǔxiāo了le，那nà你nǐ这几天zhèjǐtiān的de准备zhǔnbèi不bù都dōu白bái忙máng了le嗎ma？
I heard that the meeting was canceled abruptly, so your preparations for the past few days were all in vain, right?
我wǒ收到shōudào公司gōngsī的de信xìn以为yǐwéi要yào帮bāng我wǒ加薪jiāxīn，所以suǒyǐ我wǒ很hěn高兴gāoxìng，结果jiéguǒ是shì要yào我wǒ加班jiābān，真zhēn是shì白bái高兴gāoxìng了le
I received a letter from the company. I thought they were going to give me a raise, so I was very happy. It turned out they wanted me to work overtime — I was happy for nothing.

白 bái + 吃/喝/住

These three verbs — 吃 chī “to eat,” 喝 hē “to drink,” and 住 zhù “to live” — take on a special connotation with 白 bái. They often imply someone doing an action without paying for it, or getting something for free.

他tā已经yǐjīng半年bànnián没méi交jiāo房租fángzū了le，房东fángdōng说shuō不能bùnéng再zài继续jìxù让ràng他tā白住báizhù下去xiàqù
He has not paid rent for six months, and the landlord said he could not continue to let him live there for free.
他tā每次měicì来lái派对pàiduì都dōu不带búdài酒jiǔ也yě不带búdài食物shíwù，只zhǐ想xiǎng在zài这zhè白吃白喝báichībáihē
Whenever he comes to a party, he doesn’t bring wine or food. He just wants to eat and drink for free.
FYI · Internet Slang

Since 白 bái carries this sense of “nothing,” it’s also behind a popular internet slang term: 小白 xiǎobái, literally “little white,” is commonly used to describe someone who’s inexperienced, naive, or lacks knowledge in a particular area — someone new to something with a lot to learn. It’s usually used playfully. For example, “I’m a total newbie” is 我完全是小白 Wǒ wánquán shì xiǎobái.

2 Common Mistakes

It’s easy to forget the closing 了 le — but since 白 bái describes a wasted effort that has already happened, the sentence almost always needs it.

❌
我wǒ白bái去qù
✅
我wǒ白bái去qù了le
Without 了 le, the sentence sounds incomplete — as if the “going” hasn’t finished yet, which contradicts the whole point of 白 bái (that the effort already happened and turned out to be for nothing).

3 Practice

Translate each sentence into Chinese, then tap the card to check your answer.

01I got up early to watch the sunrise, but it was too cloudy — all for nothing.
我wǒ起qǐ了个le ge大早dàzǎo准备zhǔnbèi看kàn日出rìchū，结果jiéguǒ云yún太tài多duō，白bái起qǐ了le
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02He spent hours writing the report, but it got sent back for a rewrite — all his effort was wasted.
他tā花huā了le好几个hǎojǐge小时xiǎoshí写xiě报告bàogào，结果jiéguǒ被bèi退回tuìhuí重写chóngxiě，等于děngyú白bái写xiě了le
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03I specifically took a detour to buy bread from that shop, but they weren’t open today — I went there for nothing.
我wǒ特地tèdì绕路ràolù去qù买mǎi那家nà jiā的de面包miànbāo，结果jiéguǒ他们tāmen今天jīntiān没méi开kāi，白bái跑pǎo了le一趟yítàng
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04The presentation you worked so hard on — the boss skipped it without even looking, what a waste of preparation.
你nǐ辛苦xīnkǔ准备zhǔnbèi的de简报jiǎnbào，老板lǎobǎn看kàn都dōu没méi看kàn就jiù直接zhíjiē跳过tiàoguò，真zhēn是shì白bái准备zhǔnbèi了le
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05I thought today was a day off, but I still had to work — I was happy for nothing.
我wǒ以为yǐwéi今天jīntiān放假fàngjià，结果jiéguǒ还是háishì要yào上班shàngbān，白bái高兴gāoxìng了le一场yìchǎng
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06He always eats and drinks for free whenever he comes to my place — he’s never brought anything.
他tā每次měicì来lái我wǒ家jiā都dōu白吃白喝báichībáihē，从来cónglái没méi带过dàiguò任何rènhé东西dōngxi
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07I waited in line for two hours, but the tickets sold out — what a waste of time.
排pái了le两liǎng个ge小时xiǎoshí的de队duì，结果jiéguǒ票piào卖完màiwán了le，真zhēn是shì白bái排pái了le
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08You never listen to my advice, so wasn’t everything I just said pointless?
你nǐ都dōu不bù听tīng我的wǒde建议jiànyì，那nà我wǒ刚才gāngcái说shuō的de不bù就jiù都dōu白bái说shuō了le吗ma？
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09He’s lived at his friend’s place for six months without paying a cent of rent — basically living there for free.
他tā住zhù在zài朋友péngyou家jiā半年bànnián都dōu没méi付fù一yì毛máo钱qián房租fángzū，根本gēnběn是shì白住báizhù
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10The vocabulary I stayed up memorizing wasn’t even on the exam — I memorized it all for nothing.
我wǒ熬夜áoyè背bèi的de单字dānzì，考试kǎoshì都dōu没méi考到kǎodào，全部quánbù白bái背bèi了le
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Related Grammar

→Advanced Usage 白白 báibái(HSK 7-9)

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