Learn Hardcore Korean: gongwoneseodo ga-eul danpungeul bol su isseoyo. - You can see autumn leaves even in the park.

공원 = park
에서 = location particle “at/in”
도 = particle meaning “also” or “even”
Combined, 공원에서도 means “even at the park” or “in the park, too.”

Why is the particle 도 used here? Can I say 공원에서 instead?

도 adds the nuance of “also/even,” suggesting the action applies in multiple places and even holds true at the park. Without 도, 공원에서 가을 단풍을 볼 수 있어요 simply states “You can see fall foliage at the park” with no implication about other locations or the emphasis of “even.”

What is 가을 단풍, and how does it differ from just 단풍?

가을 = autumn/fall
단풍 = autumn foliage or leaves changing color
While 단풍 alone can imply fall foliage, adding 가을 clarifies the season, so 가을 단풍 specifically means “autumn leaves” or “fall foliage.”

Why is the object marker -을 used in 단풍을?

-을 marks 단풍 as the direct object of 보다 (to see). Since 단풍 ends in a consonant, you attach 을 (if it ended in a vowel, you would use 를).

What does 볼 수 있어요 mean, and how is it formed?

보다 = to see
-ㄹ 수 있다 = can/be able to
polite ending -어요
보다 ➞ 볼 (ability form) + 수 있다 ➞ 수 있어요
So 볼 수 있어요 means “can see” or “be able to see.”

How would you make this sentence negative?

Replace 있어요 with 없어요 in the ability construction:
공원에서도 가을 단풍을 볼 수 없어요.
= “You can’t see autumn leaves even at the park.”

How do you express this sentence in the past tense?

Use the past tense of 있어요, which is 있었어요:
공원에서도 가을 단풍을 볼 수 있었어요.
= “I/you/we were able to see autumn leaves even at the park.”

How might a friend say this casually?

In informal spoken Korean:

Drop the polite ending -요
You can also drop the object marker -을 (optional in speech)
Result:
공원에서도 가을 단풍 볼 수 있어.
= “You can see fall foliage even at the park.”