jeo bajineun danchuga manhaseo ibeul ttae sigani geollyeoyo.

Those pants have a lot of buttons, so they take time to put on.

Breakdown of jeo bajineun danchuga manhaseo ibeul ttae sigani geollyeoyo.

• ~이: subject particle
• ~는: topic particle
• ~가: subject particle
• 저: that

Questions & Answers about jeo bajineun danchuga manhaseo ibeul ttae sigani geollyeoyo.

Why does the sentence use 저 바지는 with 는?

는 marks 저 바지 as the topic: as for those pants...

Here, 저 바지는 sets up what the sentence is talking about, and the rest of the sentence explains something about them. Using 는 can also give a slight contrastive feeling, like:

• As for those pants, they take time to put on.

That contrast can imply they are different from other clothes.

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Why is it 저 바지 and not 저 바지들 if those pants is plural in English?

In Korean, 바지 normally refers to pants/trousers as a single clothing item, even though English uses a plural form.

So:

• 저 바지 = those pants / those trousers

You usually do not need 들 here. Adding 들 would sound unnatural in most normal situations unless you really mean multiple pairs of pants.

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Why is the subject marked with 가 in 단추가 많아서 instead of 단추는 or 단추를?

In 단추가 많다, the thing that is numerous gets 가/이.

So:

• 단추가 많다 = there are many buttons / the buttons are many

This is the normal pattern with 많다.
You would not usually say 단추를 많다 because 많다 does not take a direct object marked with 를/을.

단추는 많아서 could be used in a special contrastive context, but 단추가 많아서 is the neutral, natural form.

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