jega jumunharyeogo han sinbareun beolsseo pumjeoldoeeosseoyo.

주문하려고 한 means was going to order or intended to order.

It breaks down like this:

• 주문하다 = to order
• -(으)려고 하다 = to intend to do, to be going to do
• 한 = the noun-modifying form of 하다 in the past

So:

• 주문하려고 한 신발 = the shoes that I was going to order

A key point: this does not mean the speaker actually ordered them. It only shows intention or plan.

Because the meaning is different.

• 주문한 신발 = the shoes I ordered
• 주문하려고 한 신발 = the shoes I was going to order

In this sentence, the shoes were sold out before the speaker could order them, so 주문한 신발 would be wrong.

Using -(으)려고 하다 makes it clear that the action was planned, not completed.

Inside a noun-modifying clause like 제가 주문하려고 한, Korean often uses 이/가 to mark the subject naturally.

So:

• 제가 주문하려고 한 신발 = the shoes that I was going to order

Using 저는 is possible in some contexts, but here 제가 sounds more natural because it identifies who was going to do the ordering inside the clause.

Also, 저는 often gives a stronger topic or contrast feeling, which is usually not needed here.

신발은 marks the shoes as the topic of the main sentence.

The structure is basically:

• 제가 주문하려고 한 신발은 = as for the shoes I was going to order
• 벌써 품절되었어요 = they were already sold out

So 은 helps separate the long descriptive part from the main statement.

It gives a feeling like:

• As for the shoes I was going to order, they were already sold out.

Because they belong to different parts of the sentence.

• 제가 is the subject marker inside the descriptive clause:
  • 제가 주문하려고 한 = that I was going to order
• 은 marks the topic of the main clause:
  • 신발은 = as for the shoes

So the sentence has this structure:

• [제가 주문하려고 한] 신발은 [벌써 품절되었어요]

That is very normal in Korean.

벌써 means already.

It often carries a nuance of:

• earlier than expected
• sooner than expected
• surprise
• disappointment

So in this sentence, 벌써 suggests something like:

• They were already sold out
• They were sold out already? That fast?

Without 벌써, the sentence would still make sense, but it would lose that emotional nuance.

품절되었어요 means became sold out or more naturally in English, was sold out / has sold out.

Breakdown:

• 품절 = sold-out status, out of stock
• 되다 = to become
• -었어요 = past polite ending

So literally, it is something like:

• entered a sold-out state

In natural English, we usually just say:

• was sold out
• had already sold out

Because 품절 is a noun, and Korean often combines nouns with 되다 to make verbs.

So:

• 품절 = sold-out condition
• 품절되다 = to become sold out

This is a very common Korean pattern:

• 준비 → 준비되다 = to be prepared
• 완성 → 완성되다 = to be completed
• 품절 → 품절되다 = to be sold out

So 품절되었어요 is the standard and natural form.

It can feel passive in English, but in Korean it is better to think of 품절되다 as a standard verb meaning to be/become sold out rather than as a passive transformation you need to analyze deeply every time.

In other words, learners usually understand it best as a set expression:

• 품절되다 = to be sold out

So yes, it may look similar to passive-style expressions, but practically, it is just the normal verb used for this idea.

Korean nouns usually do not show singular vs. plural unless it is important.

So 신발 can mean:

• shoe
• shoes
• footwear

The exact number depends on context.

In English, we normally say shoes, but in Korean 신발 is perfectly natural here without a plural marker.

The sentence structure is:

• 제가 주문하려고 한 = the part describing the noun
• 신발은 = the topic noun
• 벌써 품절되었어요 = the main statement

So literally, it is something like:

• The shoes that I was going to order, already became sold out.

More natural English:

• The shoes I was going to order were already sold out.

This is a very common Korean pattern: the descriptive clause comes before the noun it modifies.

Yes. 주문하려던 신발은 is also natural.

It comes from 주문하려고 하던, which is often shortened in speech and writing.

So:

• 주문하려고 한 신발은
• 주문하려던 신발은

Both can mean something like:

• the shoes I was going to order

The shorter form 주문하려던 can sound a bit more natural and conversational in many situations.

The 한 part shows that the intention existed in the past.

So the meaning is not:

• the shoes I am going to order

It is:

• the shoes I was going to order
• the shoes I had intended to order

The ordering itself did not happen, but the plan existed before the speaker discovered that the shoes were sold out.

Yes, especially if you are talking about ordering shoes online, through an app, or from a catalog/store system.

So 주문하다 fits well if the speaker means place an order.

If the context were simply shopping in a store and planning to buy them, Korean might also use:

• 사려고 한 신발 = the shoes I was going to buy

So:

• 주문하다 focuses on ordering
• 사다 focuses on buying

Both can be natural depending on the situation.