i gabangeun keoseo mugeowoyo.

this

Breakdown of i gabangeun keoseo mugeowoyo.

• ~은: topic particle
• 가방: bag
• 무겁다: heavy

Questions & Answers about i gabangeun keoseo mugeowoyo.

Why does the sentence use 은/는 in 이 가방은 instead of 이 가방이?

은/는 marks the topic (what you’re talking about in general).
So 이 가방은… means “As for this bag…” and then you comment on it.

이 가방이… would mark the subject and is more typical when you’re identifying which bag (or emphasizing that this bag is the one causing the situation). For example:

• 이 가방이 커서 무거워요. = “This bag is big, so it’s heavy.” (more straightforward subject marking)
• 이 가방은 커서 무거워요. = “This bag, (it) is big so it’s heavy.” (topic/contrast-friendly)

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What does 커서 mean grammatically? Is it a verb?

커서 is the adjective (descriptive verb) 크다 (to be big) + the connector -아서/어서.

• 크다 → stem 크-
• -어서 attaches, but 크 + 어서 contracts to 커서

So 커서 means because it’s big / being big, (so)….

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How do I know whether -아서/어서 means “because” or “and then”?

-아서/어서 can express: 1) Cause/Reason: “because / so” 2) Sequence: “and then (as a result)”

In 이 가방은 커서 무거워요, it’s clearly : being big explains why it’s heavy.