syeocheureul darimjilhago naseo osjange georeo dueosseo.

-하고 나서 means after doing X, then... and makes the order of actions very explicit.

So:

• 다림질하고 나서 옷장에 걸어 두었어 = After ironing the shirt, I hung it in the closet.
• 다림질하고 옷장에 걸어 두었어 also works, but it can sound a little more like a simple sequence: I ironed it and hung it in the closet.

Using -고 나서 emphasizes that the second action happened only after the first one was completed.

다림질하다 means to iron or to do the ironing.

It is made from:

• 다림질 = ironing
• 하다 = to do

This is a very common Korean pattern:

• 공부하다 = to study
• 청소하다 = to clean
• 요리하다 = to cook
• 다림질하다 = to iron

So in the sentence, 셔츠를 다림질하고 나서 literally means after doing the ironing of the shirt.

를 marks the direct object of the verb.

Here, the shirt is the thing being ironed:

• 셔츠를 다림질하다 = to iron the shirt

So 셔츠를 tells you that 셔츠 is what receives the action.

A native English speaker may wonder whether the shirt is also the thing being hung. In Korean, that is understood from context. The sentence does not repeat 셔츠를 before 걸어 두었어, but it is still the shirt that is being hung.

에 here marks the location/place where the shirt ends up being hung.

• 옷장에 걸다 = to hang something in/on the closet/wardrobe

So:

• 셔츠를 = the thing being acted on
• 옷장에 = the place where it is hung

If you used 옷장을, that would make 옷장 the object, which would not fit this sentence.

걸어 두었어 is made of:

• 걸다 = to hang
• -어 두다 = to do something and leave it that way / do it in advance for later

So 걸어 두었어 means more than just hung it. It has the nuance of:

• hung it up and left it there
• put it there for later
• made sure it was hung up

This grammar often suggests that the result of the action is being maintained.

For example:

• 문을 열어 두었어 = I left the door open
• 음식을 만들어 두었어 = I prepared the food in advance
• 옷을 걸어 두었어 = I hung the clothes up and left them that way

Because -아/어 두다 is a fixed grammar pattern.

You attach -아/어 to the main verb:

• 걸다 → 걸어 두다
• 열다 → 열어 두다
• 사다 → 사 두다
• 만들다 → 만들어 두다

It does not use the ordinary connector -고 here.

So:

• 걸어 두다 = correct
• 걸고 두다 = not the normal form for this meaning

In Korean, when you have a sequence of actions, usually only the final verb carries the tense marking clearly.

So in:

• 셔츠를 다림질하고 나서 옷장에 걸어 두었어

the past tense is shown on 두었어, and that tells you the whole event is in the past.

This is very normal in Korean. The earlier action does not need its own past marker because the sequence and final tense already make the time clear.

두었어 is in the informal casual style, often called 반말.

It would typically be used with:

• close friends
• younger people
• children
• people you are very familiar with

More polite versions would be:

• 셔츠를 다림질하고 나서 옷장에 걸어 두었어요.
• 셔츠를 다림질하고 나서 옷장에 걸어 두었습니다.

So the original sentence sounds natural in casual everyday speech.

Yes. 두었어 and 뒀어 mean the same thing.

• 두었어 = full form
• 뒀어 = contracted form used very often in speech and writing

So you may also hear:

• 셔츠를 다림질하고 나서 옷장에 걸어 뒀어.

That sounds very natural in conversation.

They are very similar, and in many everyday situations they can both be translated as hung it up and left it there.

However, there can be a slight nuance difference:

• -아/어 두다 often emphasizes doing something in advance, for convenience, or leaving it in that state
• -아/어 놓다 often emphasizes the resulting state a little more strongly

In many real-life conversations, though, the difference is small, and both are common.

So:

• 걸어 두었어
• 걸어 놓았어

both sound natural here.

Not always exactly. 옷장 usually refers to a place where clothes are stored, such as:

• a closet
• a wardrobe
• a clothes cabinet

So in English, the best translation depends on context. In this sentence, closet or wardrobe would both work well.

Yes.

You could say:

• 셔츠를 다림질한 후에 옷장에 걸어 두었어.

This also means After ironing the shirt, I hung it in the closet.

The difference is mostly in style:

• -하고 나서 sounds very common and conversational
• -한 후에 sounds a little more formal or written

Both are correct.

Yes. In a sentence like this, 걸다 naturally means to hang up something like clothing.

So when Korean says:

• 옷장에 걸다

it often implies hanging the clothing properly, usually on a hanger or hook, depending on context.

English sometimes makes that more explicit with hang it up, while Korean often leaves that detail understood.

Yes. Korean often leaves out the subject when it is obvious from context.

So the sentence literally does not say I:

• 셔츠를 다림질하고 나서 옷장에 걸어 두었어.

But in natural context, it is understood as something like:

• I ironed the shirt and then hung it in the closet.

This is extremely common in Korean. Subjects and objects are often omitted when they are already clear.