Preposition: 替 (on behalf of/for)
替
Use 替 to express doing something on behalf of someone or feeling emotions for someone
Place 替 before the person you are acting for or feeling for. 替 can mean "on behalf of" (doing something for someone) or "for" (feeling an emotion directed at someone).
替 is similar to 为 and 给 when meaning "for someone," but 替 emphasizes substitution or emotional sharing. 替 often implies you are stepping into someone else's shoes — doing what they cannot do, or feeling what relates to them.
Lesson Targets
Podcast
Podcast: Preposition: 替 (on behalf of/for) (替)
Listen to Jason & Amy explain the 替 pattern
New here?
Understanding 替
The preposition 替 (tì) adds a personal, empathetic dimension to your Chinese. It means "on behalf of" or "for" and is used in two main ways. First, 替 can indicate doing something in someone's place: 你别替我担心了 means "Stop worrying for me" — you are worrying in my place, and I want you to stop. Second, 替 expresses emotional sharing: 大家都替你感到高兴 means "Everyone feels happy for you" — the happiness is directed toward you, and others share in it. Unlike 为 (which is more formal and general) or 给 (which focuses on giving or providing), 替 carries a warm, personal tone. It suggests empathy, solidarity, or taking on a burden for someone else. This makes it especially common in emotional expressions and friendly offers to help.
Key Points
- 替 (tì) = "on behalf of / for (someone)" — implies substitution or emotional sharing.
- 替 + person + action: doing something in someone's place or for their benefit.
- 替 + person + 感到 + emotion: feeling an emotion for someone (替你高兴, 替他难过).
- 替 is warmer and more personal than 为; it implies empathy or stepping in.
- 替 vs. 给: 给 focuses on providing something; 替 focuses on replacing or sharing.
- 替 can also mean "to replace" as a verb: 谁来替他？(Who will replace him?)
In Chinese culture, expressing emotions on behalf of others (替你高兴, 替你担心) reflects the collectivist value of shared feelings. It shows that your joy and worry are not just individual experiences but communal ones — your friends celebrate and suffer with you.
Key Vocabulary
Example Sentences
你别替我担心了，我自己处理。
Don't worry about me — I'll handle it myself.
Emotional sharing — worrying for someone
取得这么好的成绩，大家都替你感到高兴。
Having achieved such great results, everyone feels happy for you.
他生病了，我替他上课。
He is sick, so I am attending class on his behalf.
Substitution — acting in place of someone
我替你去买吧，外面太冷了。
Let me go buy it for you — it's too cold outside.
听到这个消息，我替他感到难过。
Hearing this news, I feel sad for him.
你可以替我向老师请假吗？
Can you ask the teacher for leave on my behalf?
Common Mistakes
替 implies substitution or acting on behalf of someone, not simply giving. For "bought a gift for you," use 给.
替 needs a person after it — who are you feeling happy for? The pattern is 替 + person + 感到 + emotion.
Practice Exercises
Tips & Tricks
The emotion pattern is extremely useful: 替你高兴 (happy for you), 替他难过 (sad for him), 替她担心 (worried about her).
When offering to do something for a friend, 替 sounds warm and personal: 我替你去吧 (Let me go for you).
Remember: 替 implies you are stepping into someone's shoes. 给 just means you are providing something to them.
Practice: next time a friend shares good news, say 我替你高兴! It is a natural and warm response.
Homework
Write three sentences where you do something on behalf of someone else using 替, and three sentences where you express an emotion for someone using 替……感到.