jigeum taekbaega waseo hyeongwan ape sangjareul dugo gasseo.

In Korean, 지금 does not only mean now in the strict present-time sense. It can also mean just now or a moment ago.

So in this sentence, 지금 택배가 와서... 갔어 means something like:

• The delivery just came and left...
• A delivery came a moment ago and left...

This is very natural in Korean. English learners often expect 지금 to only work with present tense, but Korean uses it more flexibly.

Here, 택배 most naturally refers to the delivery / the courier service, and by extension often the delivery person.

In everyday Korean, people often say things like:

• 택배 왔어. = The delivery came.
• 택배가 왔어. = The delivery arrived / the courier came.

Even though 택배 literally relates to parcel delivery, in casual speech it can stand in for 택배 기사 (delivery driver/courier).

That is why the sentence can then continue with 상자를 두고 갔어 (left a box and went). The implied meaning is:

• The delivery person came and left a box in front of the entrance.

가 is marking 택배 as the subject of the event being reported.

Here, 택배가 왔어 sounds like a straightforward report of what happened:

• The delivery came.

If you used 택배는, it would sound more like:

• As for the delivery, it came...
• or it could create a contrast, depending on context.

For example:

• 우편은 안 왔는데 택배는 왔어.
  The mail didn’t come, but the delivery did.

So in this sentence, 가 is the most natural neutral choice.

와서 is from 오다 (to come) + -아서/어서, a connective ending.

It links two actions:

• 오다 → 와서
• came and...

So:

• 택배가 와서 현관 앞에 상자를 두고 갔어 = The courier came and left a box in front of the entrance.

In this sentence, -아서/어서 is mainly showing sequence:

1. the courier came
2. then left the box

It can sometimes also sound slightly like and then or after coming.

현관 means entrance, entryway, or front door area.

앞에 means in front of.

So:

• 현관 앞에 = in front of the entrance
• often naturally translated as by the front door

This is a very common location phrase in Korean.

Examples:

• 문 앞에 = in front of the door
• 집 앞에 = in front of the house
• 현관 앞에 = in front of the entrance/front door

This is a very common learner question.

With 두다 (to put / place / leave), Korean usually uses 에 to mark the place where something is placed.

So:

• 현관 앞에 상자를 두다 = to place/leave a box in front of the entrance

Here, 에 marks the destination/resulting location of the box.

If you use 에서, that usually marks the place where an action happens in a more general sense, like:

• 학교에서 공부하다 = study at school
• 집에서 먹다 = eat at home

But with verbs like 두다, 놓다, 붙이다, etc., 에 is the normal choice for where something gets put.

상자 means box, and -를 marks it as the direct object.

So:

• 상자를 두고 갔어 = left a box and went

The courier is the one doing the action, and the box is what was left.

This also helps show that 택배 earlier is not the box itself in this sentence. If 택배 were already the package being discussed, having 상자를 later would sound odd unless a separate box was meant.

두고 갔어 is a very important pattern.

It comes from:

• 두다 = to put / place / leave
• -고 = and
• 가다 = to go
• 갔어 = went (casual past)

So literally, it is:

• put it down and went

But naturally, it means:

• left it there and went away

This pattern often expresses that someone did something and then left, with the result still remaining.

So:

• 상자를 두고 갔어 = left a box behind = dropped off a box and left

This gives a stronger sense than just 상자를 뒀어.
두고 갔어 emphasizes that the person placed it there and departed.

Yes, very similar in meaning here.

English uses one verb:

• left a box

Korean often expresses that idea more literally:

• put/placed a box and went
• 상자를 두고 갔어

So if you translate too literally, it may sound strange in English. But in Korean, this is a very natural way to say someone left something somewhere and went away.

Yes. The subject is still understood to be 택배—more naturally, the delivery person/courier.

Korean often omits repeated subjects when they are obvious from context.

So the structure is basically:

• [택배가] 와서 [택배가] 현관 앞에 상자를 두고 갔어.

The second 택배가 is omitted because it would be unnecessary.

This kind of omission is extremely common in Korean.

갔어 is a casual, informal ending.

It would be natural when speaking to:

• a friend
• a sibling
• someone younger
• someone you are close to

The more polite version would be:

• 지금 택배가 와서 현관 앞에 상자를 두고 갔어요.

So the meaning is the same, but the tone changes.

Not naturally. In English, that sounds strange because the package itself cannot come and leave a box.

A more natural English understanding is:

• The delivery person came and left a box by the front door.
• A delivery just arrived and they left a box by the entrance.

This is one of those cases where Korean uses a convenient shorthand that English usually does not.

Yes. The sentence sounds like a casual update telling someone what just happened.

It has a natural spoken feel:

• 지금 = just now
• 택배가 와서 = the courier came
• 현관 앞에 상자를 두고 갔어 = and left a box by the door

So the overall tone is something like:

• A delivery just came and left a box by the front door.

It sounds immediate, conversational, and everyday.