完成

You’ll mostly see 完成 paired with nouns that represent tasks, goals, or missions. Think of it as the ultimate professional verb. You 完成 your 作业 (homework), your 任务 (task), or your 梦想 (dream). It usually sits comfortably after the subject and before the object, like a bridge between you and your success. You can also add 了 after it to show that the victory is already yours. Want to sound like a pro? Use it with 'result-oriented' words. If you're talking about a process, you might use other words, but for the final 'check' on your to-do list, this is your best friend. Just don't try to use it for eating a sandwich—we have simpler words for that, unless the sandwich was a competitive eating challenge!

Walk into any office in Shanghai, and you'll hear people asking, "你完成了吗?" (Have you finished?). It’s the soundtrack of productivity. On social media, you might see a fitness influencer post a sweaty selfie with the caption "今日健身已完成" (Today's workout is completed). It’s punchy and official. In the world of apps, when your Meituan delivery driver drops off your spicy tofu, the app status will update to 订单已完成 (Order completed). Even on Netflix, when you finally finish that 80-episode historical drama, you’ve technically 完成-ed the viewing task. It’s everywhere, from the boardroom to the bedroom (when you finally finish assembling that IKEA shelf without having leftover screws).

Use this phrase when you want to sound organized and capable. It’s perfect for job interviews when you’re describing your past achievements. "I 完成-ed the project ahead of schedule" sounds much more impressive than "I did the project." It’s also the go-to for academic settings. If a teacher asks for your essay, 完成 is the word they want to hear. Use it for milestones—finishing a marathon, completing a degree, or finally hitting that 100-day Duolingo streak. It’s a 'big' word that treats your actions with the respect they deserve. It's also great for self-affirmation; tell yourself "任务完成" after a long day of chores to feel like a superhero.

Avoid using 完成 for biological functions or casual physical actions. You don't 完成 a glass of water; you just 喝完 (drink-finish) it. You don't 完成 a movie in the sense of just watching it; you 看完 (see-finish) it. Using 完成 for a movie makes it sound like a homework assignment—unless you're a film critic, then maybe it fits! Also, don't use it for relationships. You don't "complete" a breakup with 完成. It’s strictly for goals, tasks, and things that have a clear 'start' and 'finish' line. If there’s no objective, 完成 feels a bit too stiff and robotic.

Learners often treat 完成 like the English word "finish" and apply it to everything.

Another mistake is forgetting the object. You usually need to say *what* you completed. Saying just "我完成了" is okay if the context is super clear, but adding the noun makes you sound much more native and precise. Don't be shy with your nouns!

You might run into 做完 (zuò wán), which just means "done doing." It’s more casual and less 'achievement' focused. Then there’s 搞定 (gǎo dìng), which is like saying "got it done" or "nailed it"—very informal and great for texting. 结束 (jié shù) means "to end" or "to conclude," but it doesn't always mean the goal was reached (a meeting can 结束 because people got bored, not because they 完成-ed the agenda). For super formal situations, you might hear 达成 (dá chéng), often used for reaching agreements or consensus. Think of 完成 as the reliable middle child—not too formal, not too casual.

You’ll often see 圆满完成 (yuán mǎn wán chéng), which means "successfully and perfectly completed." It’s the gold standard of completion, often used for big events or space missions. If things aren't going well, you might say 无法完成 (wú fǎ wán chéng)—"unable to complete." It sounds like a computer error message, but it’s very common in professional emails. There’s also 完成度 (wán chéng dù), which refers to the "degree of completion" or how polished a work is. If someone says your project has high 完成度, take the compliment—it means you did a high-quality job!

Is 完成 formal? It’s neutral-to-formal. You can use it with your boss or your best friend, but with your friend, it might sound a bit like you're treating your hangout like a business meeting. Can I use it as a noun? Yes! It can mean 'completion' as in "The completion of the building took five years." Is there a difference between 完成 and 成功? Yes! 成功 means 'to succeed,' while 完成 means 'to complete.' You can 完成 a task without necessarily being 成功 (successful) at the overall goal, though usually, they go hand in hand. Just remember: 完成 is about the finish line; 成功 is about the trophy.