eki mae no panya ni nagai gyouretu ga dekite ita node, kyou ha akiramemasita.

駅前 is a very common compound noun meaning the area in front of a station or the station-front area.

So:

• 駅前のパン屋 = the bakery near/in front of the station
• 駅の前のパン屋 = the bakery directly in front of the station

Both can be correct, but they feel a little different:

• 駅前 sounds like a set location or neighborhood label.
• 駅の前 sounds more literal: physically right in front of the station.

In everyday Japanese, 駅前の〜 is very natural for shops and places near the station.

Here, に marks the place where the line formed/existed.

So:

• パン屋に行列ができる = a line forms at the bakery

This may feel surprising to an English speaker, because English often uses at or in front of. In Japanese, with できる meaning to form / to appear / to come into existence, the location is often marked with に.

Compare:

• 公園に池がある = There is a pond in the park.
• 店の前に人だかりができた = A crowd formed in front of the shop.
• パン屋に行列ができた = A line formed at the bakery.

So に is not marking direction here. It is marking the place where something came into existence.

No. In this expression, できる does not mean can do.

Japanese できる has several meanings, including:

• can do
• be made
• be completed
• come into existence / form / appear

In this sentence:

• 行列ができる = a line forms
• 行列ができていた = a line had formed / there was a line

So 行列 is the thing that came into existence, which is why it takes が.

This is a very common pattern:

• 列ができる = a line forms
• しわができる = wrinkles form
• 問題ができる = a problem arises
• 空席ができる = a seat becomes available

This is a very common learner question.

• できた = formed
• できていた = had formed / was there already

The 〜ていた form here shows a resulting state in the past. It suggests that when the speaker got there or looked, the line was already formed.

So:

• 長い行列ができたので = Because a long line formed
• 長い行列ができていたので = Because a long line had formed / because there was already a long line

In English, the second one often sounds more natural in context, because the speaker is describing the situation they encountered.

Because in Japanese, just like in English, lines are commonly described as long.

• 長い行列 = a long line
• 短い行列 = a short line

This is completely natural vocabulary. You would not usually say 大きい行列 here, because a line is thought of mainly in terms of length, not overall size.

Both ので and から can mean because, but they have different tones.

• ので sounds a bit softer, calmer, and more explanatory
• から can sound more direct or subjective

So:

• 長い行列ができていたので、今日はあきらめました。 = Because there was a long line, I gave up for today.

This sounds natural and polite in narration.

If you used から:

• 長い行列ができていたから、今日はあきらめました。

This is also correct, but it feels a little more direct and conversational.

The は marks 今日 as the topic and adds a slight contrast.

• 今日はあきらめました = As for today, I gave up
• 今日あきらめました = I gave up today

The version with は has a nuance like:

• at least for today
• today, I decided not to
• maybe another day, but not today

So the sentence suggests: Because there was a long line, I gave up for today.

That contrastive feeling is very natural here.

Japanese often leaves obvious things unstated.

Here, あきらめました literally means gave up, but the object is omitted because it is understood from context.

Possible implied meanings are:

• I gave up on buying bread there today
• I gave up on going in today
• I decided not to try today

Japanese often does this when the listener can easily guess the missing information.

So the sentence does not need something like:

• パンを買うのをあきらめました

Even though that would make the meaning more explicit.

In many cases, パン屋 refers to the bakery shop.

So in this sentence:

• 駅前のパン屋 = the bakery near the station

Technically, 〜屋 words can sometimes refer to either:

• the person
• the shop/business

But here, because a line is forming at it, it clearly means the shop.

Because 行列 is the thing that newly appeared or existed in that situation.

• 行列ができていた = there was a line / a line had formed

With できる, the thing that comes into existence is often marked by が.

Using は would change the nuance. For example:

• 行列はできていた could sound like as for the line, it had formed, which would only make sense in a special contrastive context.

In a normal sentence describing what was there, が is the natural choice.

You should learn 駅前 as a fixed compound noun.

It is made from:

• 駅 = station
• 前 = front

But together, 駅前 functions as one common expression meaning the station-front area.

That is why the sentence is structured as:

• 駅前のパン屋

not

• 駅前パン屋

The の links the noun 駅前 to the noun パン屋.

Yes. That is a very natural translation.

A few other natural translations are:

• There was a long line at the bakery by the station, so I gave up for today.
• Since a long line had formed at the bakery near the station, I decided not to try today.
• The bakery near the station had a long line, so I gave up today.

The key ideas are:

• 駅前のパン屋 = the bakery near the station
• 長い行列ができていた = there was a long line / a long line had formed
• 今日はあきらめました = I gave up for today

It breaks down like this:

• 駅前のパン屋に
  = at the bakery near the station

• 長い行列が
  = a long line

• できていたので、
  = had formed / was there, so / because

• 今日は
  = as for today

• あきらめました。
  = I gave up

So the full structure is:

[Place] + [thing] が + できていた + ので + [today/topic] + あきらめました

Very literally:

Because a long line had formed at the bakery near the station, as for today, I gave up.

More natural English:

There was a long line at the bakery near the station, so I gave up for today.