bi on dwieneun gyedani mikkeureowoseo josimhaeya haeyo.

After it rains, the stairs are slippery, so you have to be careful.

Breakdown of bi on dwieneun gyedani mikkeureowoseo josimhaeya haeyo.

• ~이: subject particle
• ~는: topic particle
• 비: rain
• 오다: to rain

Questions & Answers about bi on dwieneun gyedani mikkeureowoseo josimhaeya haeyo.

Why is it 비 온 뒤 and not 비 오는 뒤?

온 is the past adnominal form of 오다 in 비가 오다 (to rain).

So:

• 비 온 뒤 = after it rained / after the rain
• 비 오는 would mean raining or that is raining, which does not fit naturally with 뒤 here

Korean often uses the past adnominal form before 뒤 to mean after doing something:

• 밥 먹은 뒤 = after eating
• 수업 끝난 뒤 = after class ended
• 비 온 뒤 = after it rained

A fuller version would be 비가 온 뒤.

Why is there no 가 in 비 온 뒤? Shouldn’t it be 비가 온 뒤?

Yes, 비가 온 뒤 is the full and very standard form.

In everyday Korean, particles like 이/가 are often omitted when the meaning is obvious. So:

• 비가 온 뒤 = full form
• 비 온 뒤 = natural shortened form

Both are understood as after it rains / after the rain.

This kind of omission is very common in speech and informal writing.

What does 뒤에는 mean, and why is 는 added?