suyoiredo sueobeun ojeon 10sie sijakhaeyo.

topic particle

Breakdown of suyoiredo sueobeun ojeon 10sie sijakhaeyo.

• ~도: additive particle
• 수업: class
• ~에: time particle

Questions & Answers about suyoiredo sueobeun ojeon 10sie sijakhaeyo.

What does -에도 mean in 수요일에도, and how is it different from just -에?

-에 is the basic time/location particle meaning “at” or “on.” When you add 도, it becomes -에도, which means “also at/on” or “even at/on.”
So 수요일에도 literally means “also on Wednesday” (or “even on Wednesday”), implying that something happens on Wednesday in addition to other days.

Why is 수업 marked with 은 instead of the subject marker 이/가?

은/는 is the topic marker. It introduces 수업 (“class”) as the topic of the sentence and often adds a contrast or emphasis. Here it sets up “as for the class(s)…”
If you used 수업이, you’d simply mark it as the subject without that topical or contrastive nuance: 수업이 오전 10시에 시작해요 means “The class starts at 10 AM,” stated neutrally.

Why do we say 오전 10시에? What role does -에 play with time expressions?

In Korean, the particle -에 attaches to time nouns to indicate “when” something occurs (“at” a certain time).
오전 10시 means “10 AM,” so 오전 10시에 means “at 10 AM.”

What speech level is used in 시작해요, and how is it different from 시작합니다?