seonsaengnimi sueobeseo jasehi seolmyeonghaeyo.

subject particle

Breakdown of seonsaengnimi sueobeseo jasehi seolmyeonghaeyo.

• ~에서: location particle
• 수업: class
• 선생님: teacher

Questions & Answers about seonsaengnimi sueobeseo jasehi seolmyeonghaeyo.

Why is it 선생님이 and not 선생님가? What does 이 do?

• 이/가 marks the subject. Use 이 after a final consonant and 가 after a vowel.
• 선생님 ends with ㅁ (a consonant), so it takes 이.
• 이/가 often presents or specifies the subject (answers who does the action).

Could I use 선생님은 instead of 선생님이? What changes?

• Yes. Both are correct but with nuance:
  • 선생님이: identifies the subject (who explains).
  • 선생님은: sets the teacher as the topic, often implying contrast or a general habit.

Since it’s a teacher, should I use honorifics like 선생님께서 and add -시- to the verb?

• For extra respect/formality, yes:
  • 선생님께서 수업에서 자세히 설명하세요. (polite honorific)
  • 선생님께서 수업에서 자세히 설명하십니다. (formal honorific)
• The original is fine in everyday polite speech; honorifics sound more respectful/formal.

Why 수업에서 and not 수업에?