You're telling a friend to leave early because traffic will be bad, or reminding someone to grab an umbrella before rain ruins the outing. In Mandarin, these warnings use 以 (yǐ) — a formal connector that links an action to its purpose or to a problem you want to avoid.
The pattern always places the action first, then the connector. 以便 (yǐbiàn) means "so that" a good outcome can happen, while 以免 (yǐmiǎn) means "in order to avoid" a bad one.
Example: 我们早点出发，以免堵车。 (wǒ men zǎo diǎn chū fā, yǐ miǎn dǔ chē.) — "Let's leave early to avoid getting stuck in traffic."
You're explaining why you're doing something in formal situations, or warning others about problems to sidestep — like telling a friend to book early so there are still seats, or to bring an umbrella so they don't get rained on.
This is a live voice conversation with AI teacher Mei Lin — you talk out loud, not type. You'll work through scenarios where 以 (yǐ) fits naturally: planning ahead, giving advice, cautioning someone. Mei Lin corrects your grammar and pronunciation in the flow of conversation and adapts to your level. The lesson targets this single grammar pattern and takes roughly 10 minutes.
You can reinforce what you learn with the free printable Chinese worksheet generator for handwriting practice. For more grammar at this level, browse the HSK 4 lessons hub page.
When you're ready for another pattern, try another HSK 4 live lesson on 不得不 (bùdébù) or another HSK 4 live lesson on 宁可...也不 (nìngkě...yě bù).
The first lesson is free to start — just talk with Mei Lin and build confidence using 以 (yǐ) in real conversation.
以 (yǐ) is a formal connector meaning "by means of" or "in order to." In this lesson, you focus on two compound forms: 以便 (yǐbiàn) — "so that" a good thing happens — and 以免 (yǐmiǎn) — "in order to avoid" a bad outcome. The action always comes first, then the connector.
Use 以便 (yǐbiàn) when you want a positive result to follow your action, and 以免 (yǐmiǎn) when you want to prevent a negative one. For example, in the key sentence from Planning Ahead, 我们早点出发，以免堵车 means "Let's leave early to avoid getting stuck in traffic" — the connector warns against a problem rather than pursuing a goal.
Each live conversation lesson targets one grammar pattern and takes roughly 10 minutes. You talk out loud with AI teacher Mei Lin, who corrects grammar and pronunciation as you go and adapts to your level. The first lesson is free to start.
Yes — you can use the free Chinese Worksheet Generator to print handwriting worksheets. Ready-made packs cover HSK 1–3 words, so you may need to create a custom set for this HSK 4 grammar pattern.