mokgyeokjaga sangdaebangui beonhopaneul jeonghwakhage bwasseoyo.

It breaks down like this:

• 목격자가 = the witness + subject marker
• 상대방의 = the other person’s / the other party’s
• 번호판을 = license plate + object marker
• 정확하게 = accurately, exactly
• 봤어요 = saw

So the sentence follows a very typical Korean pattern:

subject + possessor + object + adverb + verb

Korean usually puts the verb at the end.

가 is the subject marker. It marks 목격자 as the person doing the seeing.

So:

• 목격자가 봤어요 = the witness saw
• 목격자는 봤어요 would sound more like as for the witness, they saw it or would add contrast/topic nuance

Using 가 here is a neutral, straightforward way to identify the subject.

상대방 literally means the other side or the other party. In real situations, it often means:

• the other person
• the other party involved
• the opposing side

In a context like an accident or dispute, 상대방의 번호판 would usually mean the other person’s license plate.

It does not always mean an enemy. It is often just a neutral way to say the other party.

의 marks possession, similar to English ’s or of.

So:

• 상대방의 번호판 = the other party’s license plate

It connects the owner/modifier noun to the following noun.

A very literal gloss would be:

• 상대방 = the other party
• 의 = ’s
• 번호판 = license plate

Yes, sometimes.

In everyday speech, Koreans often omit 의 when the meaning is clear:

• 상대방 번호판을 봤어요

This can sound very natural in conversation.

However, 상대방의 번호판을 봤어요 is also completely correct and can feel a bit clearer or slightly more formal/written. For learners, keeping 의 is often helpful because it makes the structure easier to see.

Because 번호판 is the direct object of the verb 보다 (to see).

The witness is seeing the license plate, so the plate gets the object marker:

• 번호판을 봤어요 = saw the license plate

If you changed the marker, the nuance would change. For example:

• 번호판은 would make license plate the topic or create contrast
• 번호판도 would mean the license plate too

So 을 is the normal, neutral choice here.

Here 정확하게 means something like:

• accurately
• exactly
• with precision

So 번호판을 정확하게 봤어요 means the witness saw the plate precisely enough to identify it correctly.

In English, accurately saw sounds a little unusual, but in Korean this type of expression is natural. The idea is not just that the witness looked at it, but that they got the details right.

Yes. 정확히 is also correct.

Both are adverb forms of 정확하다 (to be accurate / exact):

• 정확하게 봤어요
• 정확히 봤어요

Both mean essentially the same thing.

Very roughly:

• 정확하게 can feel a bit fuller or more descriptive
• 정확히 can feel a bit shorter and more concise

In many situations, the difference is very small.

봤어요 is the common contracted form of 보았어요.

From the verb 보다 (to see):

• 보았어요 = full form
• 봤어요 = contracted form

Both are correct, but 봤어요 is much more common in normal speech.

This sentence is in the polite past style, so it means saw in a polite, everyday way.

Related forms:

• 봐요 = see / look at (polite present)
• 봤어요 = saw (polite past)
• 보았습니다 = saw (more formal)
• 봤어 = saw (casual)

Because Korean is usually an SOV language:

• Subject
• Object
• Verb

So instead of English The witness saw the license plate, Korean naturally puts the verb last:

• 목격자가 ... 번호판을 ... 봤어요

Also, adverbs like 정확하게 usually come before the verb they modify.

Yes, it is natural.

A native speaker might also say:

• 목격자가 상대방 번호판을 정확히 봤어요.
• 목격자가 상대방의 번호판을 똑똑히 봤어요.
• 목격자가 상대방 번호판을 분명히 봤어요.

These are slightly different in nuance:

• 정확하게 / 정확히 = accurately, exactly
• 똑똑히 = clearly, distinctly
• 분명히 = clearly, definitely

Your original sentence is perfectly fine, especially if the point is that the witness saw the plate accurately enough to know what it was.

It is pronounced roughly like bwa-sseo-yo.

A few quick pronunciation notes:

• 보았어요 contracts to 봤어요
• The written form looks short, but the pronunciation is smooth and common in speech

Other words in the sentence are roughly:

• 목격자가 = mok-gyeok-ja-ga
• 상대방의 = sang-dae-bang-e / sang-dae-bang-ui, depending on speaking style
• 번호판을 = beon-ho-pan-eul
• 정확하게 = jeong-hwak-ha-ge
• 봤어요 = bwa-sseo-yo

Romanization is only approximate, but it can help you get started.