grammar ~아/어 놓다.

Q. When do you say this expression? How do you write it?

A. The Korean word '놓다' has a lot of meaning.
→A. The Korean word '놓다' has a lot of meanings. (Plurality)

V~아/어 놓다 is used as an auxiliary verb.

It can be exchanged for 'V~아/어 두다' and means 'to be retained after the previous verb is finished'.
→It can be exchanged for "V-아/어 두다"and means "to be retained little the previous verb is finished." (Punctuation mark)

It's a hard to understand, isn't it?

So, when and how do we use it?

I use it roughly in two ways.

1. When the condition persists after the previous action.
e.g. The air in the classroom is a bit bad. Let's leave the door open.

"V" vs "V-아/어 놓다"
You can use "V" for a single movement, but use "V-아/어 놓다" it if it stays in a certain condition for a certain amount of time.

Use "V-아/어 놓다" if it stays in the state for a period of time after the previous action is completed.

Look at the below sentences and see how the difference is.
→Look at the sentences below and see what the difference is. (Sentence construction and word choice)

The door is locked. Open the door!
문이 잠겼어. 문 좀 열어!
vs.

There's a strange smell in the room.
I need to keep the door open until the smell is gone.
방에서 이상한 냄새가 나. 이상한 냄새가 없어질 때까지 문을 열어 놓아야겠어.

Below are the sentences that are often used.
>Below are the sentences I often use. (object)

"I was so scared and I slept with the light on."
>I was so scared that I slept with the lights on. (determiner)

"Who left the computer on and went out?"
>"Who left the computer turned on?" (modifier)

"The window kept opening so locked it." (correct sentence)

"Hang your coat on this rack." (correct sentence)

2. A person needs something in the future and uses this expression to prepare it in advance and wait for it.
>These expressions are used in different situations. (intended message)

"I reserved a movie ticket for my weekend date."(correct sentence)

"I'm going to buy a family gift for Christmas in advance."
>"I'm going to buy my family a gift for Christmas in advance." (word order)

"I've already changed money to go to America on vacation."

"If you buy vegetables in advance, they will spoil. Let's buy them on the morning of the party."
>"If you buy vegetables in advance, they will get rotten. Let's buy them in the morning on the day of the party." (preposition, adjective)

I often use it like this. (correct sentence)

"put1 & put2" has the same meaning, but I often use 'A2' when I talk.
>"put1 & put2" have the same meaning, but I often use 'A2' when I talk. (plural verb)