i oseun jipeoboda danchuga deo jal eoullyeo boyeoyo.

Buttons look better on these clothes than a zipper.

Breakdown of i oseun jipeoboda danchuga deo jal eoullyeo boyeoyo.

• 이: this
• ~가: subject particle
• ~은: topic particle
• ~보다: comparative particle

Questions & Answers about i oseun jipeoboda danchuga deo jal eoullyeo boyeoyo.

Why is it 이 옷은 but 단추가?

Because they are doing different jobs.

• 이 옷은 sets the overall topic: as for this item of clothing
• 단추가 marks the thing being described inside that topic: buttons are the thing that seems to suit it better

Korean often uses a topic + subject structure like this. So the sentence is not strange at all; it is very typical Korean.

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What does 지퍼보다 mean here?

보다 after a noun means than in comparisons.

So:

• 지퍼보다 = than a zipper / than zippers

A very common comparison pattern is:

• A보다 B가 더 ...
• B is more ... than A

So here, buttons are being compared with zippers.

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Why is 더 used if 보다 already means than?

Because Korean normally uses both.

• 보다 marks what you are comparing against
• 더 means more

So the standard pattern is:

• A보다 B가 더 좋다
• B is better than A

You can sometimes omit 더 if the comparison is already obvious, but keeping it sounds more complete and natural in most cases.

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Why is there 잘 before ?