hiruyasumi ni panya de korokkepan wo katte, kaisya no tikaku no kouen de tabemasita.

に marks a specific time when something happens.

So 昼休みに means during lunch break or at lunchtime.

A useful point:

• Time words like 今日, 昨日, 毎日 usually do not take に
• But nouns referring to a particular occasion or point in time often can take に

So in this sentence, 昼休みに is a natural way to say that the actions happened during the lunch break.

You may also sometimes see 昼休み without に in casual context, but 昼休みに is very standard and clear.

パン屋 means bakery or bread shop.

It is made of:

• パン = bread
• 屋 = shop / store / person who deals in something

So literally it is something like bread shop.

It is written パン屋 because:

• パン is normally written in katakana since it is a loanword
• 屋 is a kanji commonly used in words for shops, like:
  • 本屋 = bookstore
  • 花屋 = flower shop

In pronunciation, パン屋 is read ぱんや, but it is usually written with the kanji 屋.

Here, で marks the place where an action happens.

So:

• パン屋で買って = bought it at the bakery

This is one of the most common uses of で:

• 学校で勉強する = study at school
• レストランで食べる = eat at a restaurant

In this sentence, the action 買う happens at the bakery, so で is used.

を marks the direct object of the verb.

Here:

• コロッケパンを買って = bought a croquette bread

The thing being bought is コロッケパン, so it takes を.

This is the standard object marker with action verbs like:

• パンを食べる = eat bread
• 本を読む = read a book
• 水を飲む = drink water

コロッケパン is a compound noun, basically croquette bread/bun.

It combines:

• コロッケ = croquette
• パン = bread

In Japanese, food names are very often made by putting nouns together directly, without extra words like of or with.

So instead of something like コロッケのパン, Japanese naturally uses the compound コロッケパン.

Other similar examples:

• たまごサンド = egg sandwich
• カレーパン = curry bread
• あんパン = red bean bread

買って is the て-form of 買う.

Here it is used to connect actions in sequence:

• first, buy the croquette bread
• then, eat it in the park

So:

• 買って、食べました = bought it, and ate it

This is a very common Japanese pattern:

• 店に行って、買いました = went to the store and bought it
• 家に帰って、寝ました = went home and slept

The て-form often implies that the first action happens before the second.

When Japanese connects verbs with the て-form, the earlier verb usually does not carry the final tense or politeness marking by itself. The last verb does that for the whole sequence.

So:

• 買って、食べました is natural
• It means both actions happened in the past, politely

If you said:

• 買いました、食べました that would sound more like two separate sentences or a list of actions, rather than one smoothly connected sequence.

So the pattern is:

• Verb 1 in て-form
• Final verb in tense/polite form

Example:

• 起きて、朝ご飯を食べました
• 電車に乗って、会社に行きました

Yes, it is the same basic grammar point.

In both cases, で marks the place where an action happens.

• パン屋で = at the bakery, where the buying happened
• 公園で = in the park, where the eating happened

So the sentence has two different action locations:

1. the place of buying
2. the place of eating

That is why で appears twice.

Because Japanese is stacking noun modifiers.

Break it down like this:

1. 会社 = company
2. 会社の近く = near the company / the company's vicinity
3. 会社の近くの公園 = the park near the company

The first の connects:

• 会社 → 近く
• company → nearby area

The second の connects:

• 会社の近く → 公園
• the area near the company → park

So it is basically:

• [company]’s [near area]’s [park] which in natural English becomes:
• the park near the company

This kind of chaining with の is very common in Japanese.

近く here acts like a noun meaning nearby area or vicinity.

So:

• 会社の近く = the area near the company

Then that whole phrase modifies 公園:

• 会社の近くの公園 = the park near the company

This is a useful pattern:

• 駅の近く = near the station
• 家の近く = near my house
• 学校の近くの店 = the shop near the school

You may also see 近くに when it is used adverbially:

• 会社の近くに公園があります = There is a park near the company.

But in your sentence, 近く is part of a noun phrase modifying 公園, so it appears as 会社の近くの公園.

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

So even though English often needs something like I, he, or she, Japanese frequently omits it.

In this sentence, the subject is simply understood:

• probably I bought it and ate it
• but the exact subject depends on the wider context

This is very normal Japanese style. A full version could be:

• 私は昼休みにパン屋でコロッケパンを買って、会社の近くの公園で食べました。

But if the topic is already clear, 私は is usually unnecessary.

Yes. The て-form strongly suggests the normal sequence of events:

1. bought the croquette bread
2. ate it in the park

So 買って、食べました naturally implies after buying it, [someone] ate it.

The て-form can sometimes just connect related actions without emphasizing exact timing, but in a sentence like this, the sequential reading is the natural one.

The comma is helpful, but it is not the main thing that shows the grammar.

What really connects the actions is 買って, the て-form.

So:

• 買って、会社の近くの公園で食べました and
• 買って会社の近くの公園で食べました

are both understandable.

The comma just makes the sentence easier to read by showing a pause between the two action parts.

Yes. Time expressions are often flexible in Japanese.

For example, these are all possible in many contexts:

• 昼休みにパン屋でコロッケパンを買って、会社の近くの公園で食べました。
• パン屋でコロッケパンを買って、昼休みに会社の近くの公園で食べました。

But the original version sounds natural because the lunch break sets the time frame for the whole event right from the start.

Putting the time expression early is very common in Japanese.