tā guān dēng le, tā guān mén le.

he

Breakdown of tā guān dēng le, tā guān mén le.

• 她tā: she
• 了le: perfective particle

Questions & Answers about tā guān dēng le, tā guān mén le.

What does the particle 了 do in each clause?

It marks a new, changed situation or a completed event. In 她关灯了 and 他关门了, 了 tells us the actions have happened and the resulting state now holds (the light is off; the door is closed). Without 了, 她关灯 / 他关门 sounds habitual or instruction-like, not a one-time completed action.

Can I say 她关了灯 instead of 她关灯了? What’s the difference?

Both are correct, but the nuance differs:

• 她关灯了: sentence-final 了 highlights the new situation now.
• 她关了灯: verb-了 highlights completion of the action. In many contexts they’re interchangeable. You’ll also hear both combined in casual speech: 她关了灯了, though one 了 is usually enough in careful writing.

Would a 把-sentence be more natural with objects like 灯 and 门?

Very common and natural. Use 把 to foreground the affected object:

• 她把灯关了。
• 他把门关了。 把 is preferred when the object is specific/known and you want to stress the result on that object.

What’s the difference between 关, 关上, 关掉, and 关闭?

• 关: general close/turn off; the default.
• 关上: resultative; emphasizes ending up closed/shut (common with doors/windows): 关上门.
• 关掉: turn off/shut off (often lights/devices): 把灯关掉.
• 关闭: formal/literary or signage: 商店已关闭.