Learn Hardcore Korean: dariga gireoseo geotgi pyeonhaeyo. - Having long legs makes walking comfortable.

In Korean, pronouns and possessives (like 제 “my”) are often dropped when the meaning is clear. Here, “legs” obviously belong to the speaker, so adding 제 is unnecessary in casual or neutral contexts.

What does the ending -어서 in 길어서 do?

The connective -아서/어서 attaches to verb or adjective stems to show reason or cause. In 길어서, it means “because (they) are long.” So the first clause literally says “because (my) legs are long…”

Why not use -고 and say 다리가 길고 걷기 편해요?

The connective -고 simply lists two states or actions (“…and…”), without implying causation. -아서/어서 specifically indicates reason (“because…”). If you said 길고 걷기 편해요, it would feel like “legs are long and walking is comfortable,” with no direct cause-effect link.

What is 걷기 here? Why not just 걷다 편해요?

걷기 is the nominalized form of the verb 걷다 (“to walk”), formed by adding -기. It turns “walk” into the noun “walking.” You can’t say 걷다 편해요 because 편하다 needs a noun subject: “walking is comfortable.”

Can I say 걷는 게 편해요 instead of 걷기 편해요?

Yes. 걷는 게 (using the -는 것/게 nominalizer) also means “walking.” It’s slightly more descriptive or colloquial in some dialects, but 걷기 is shorter and very common.

Could I say 걸어서 편해요? What’s the difference?

걸어서 편해요 uses -아서/어서 after 걷다, meaning “it’s comfortable because one walks (to get there).” This shifts the focus to the means (“by walking”) rather than the action “walking” itself being comfortable. 걷기 편해요 specifically states “walking is comfortable/easy.”

What’s the nuance between 편하다 and 쉽다 when talking about actions?

편하다: “comfortable, convenient, cozy” – emphasizes comfort or lack of difficulty/pain.
쉽다: “easy” – focuses purely on low effort or simplicity.
So 걷기 편해요 suggests “walking feels comfortable” (perhaps less strain), while 걷기 쉬워요 would mean “walking is easy” (not much effort required).