hwadaneseo peteubyeongeul chajassseupnida.

에서 marks the place where an action happens.

Here, the action is 찾았습니다 (found), so 화단에서 means in/at the flower bed or at the flower bed.

A helpful way to think about it:

• 에 often marks a destination or location of existence
• 에서 often marks the place where someone does something

Since finding is an action, 에서 is the natural choice.

Usually, not in this sentence.

• 화단에서 페트병을 찾았습니다 = I found a plastic bottle in/at the flower bed
• 화단에 페트병이 있습니다 = There is a plastic bottle in the flower bed

So:

• 에 fits with 있다, 가다, 오다, and similar patterns
• 에서 fits better when the place is where an action occurs

페트병 means a PET bottle, which in everyday English is basically a plastic bottle, especially a drink bottle.

It is made from:

• 페트 = PET
• 병 = bottle

So 페트병 is a very common Korean word for a plastic bottle.

을 is the object marker. It marks 페트병 as the thing that was found.

So:

• 페트병을 = the plastic bottle as the object of the verb
• 찾았습니다 = found

Together, 페트병을 찾았습니다 means found a plastic bottle.

찾았습니다 comes from the dictionary form 찾다.

Breakdown:

• 찾다 = to find / to look for
• -았- = past tense
• -습니다 = formal polite ending

So 찾았습니다 is past tense, formal, and polite.

It is the kind of form you would hear in:

• announcements
• reports
• formal conversation
• writing with a polite tone

Yes, 찾다 can mean both to look for and to find, depending on context.

In this sentence, it is understood as found because of the overall situation and meaning already given to the learner.

If you wanted to make look for clearer, Korean often uses other forms such as:

• 찾고 있었습니다 = was looking for
• 찾아봤습니다 = tried looking for
• 찾으러 갔습니다 = went to look for

So 찾았습니다 by itself can be ambiguous, but context usually resolves it.

Korean often leaves out the subject when it is already understood from context.

So 화단에서 페트병을 찾았습니다 could mean:

• I found a plastic bottle in the flower bed
• We found a plastic bottle in the flower bed
• Someone found a plastic bottle in the flower bed

In English, you usually need to say the subject. In Korean, you often do not.

It is in the formal polite style because of -습니다.

That makes it appropriate for:

• speaking politely to strangers
• giving a report
• making an announcement
• formal writing

Less formal versions would be:

• 화단에서 페트병을 찾았어요. = polite, everyday
• 화단에서 페트병을 찾았어. = casual

The basic Korean order is:

place + object + verb

So:

• 화단에서 = in/at the flower bed
• 페트병을 = a plastic bottle
• 찾았습니다 = found

Korean is more flexible than English because particles show each word’s role, but the verb usually comes at the end. This sentence is a very natural, standard order.

A careful pronunciation guide is:

hwa-dan-e-seo pe-teu-byeong-eul chat-ass-seum-ni-da

In more natural connected speech, it may sound closer to:

hwa-da-ne-seo pe-teu-byeong-eul cha-ja-sseum-ni-da

A few things to notice:

• 화단에서 flows together smoothly
• 페트병 is pronounced just like its syllables suggest
• 찾았습니다 can sound softer and more connected than the spelling may first suggest to learners

Yes, but the nuance changes.

• 찾았습니다 often focuses on finding something, sometimes after looking for it
• 발견했습니다 means discovered or found, and can sound a bit more formal or objective

So:

• 화단에서 페트병을 찾았습니다 = found a plastic bottle in the flower bed
• 화단에서 페트병을 발견했습니다 = discovered a plastic bottle in the flower bed

Both are possible, but 찾았습니다 sounds very natural in everyday Korean.