achime chuwoseo ginpareul ipgo mokdorido haesseo.

It was cold in the morning, so I wore long sleeves and put on a scarf too.

Breakdown of achime chuwoseo ginpareul ipgo mokdorido haesseo.

• ~을: object particle
• ~도: additive particle
• 춥다: cold
• 입다: to wear

Questions & Answers about achime chuwoseo ginpareul ipgo mokdorido haesseo.

Why is there 에 in 아침에?

에 marks a point in time, so 아침에 means in the morning or this morning.

In Korean, many time expressions can take 에 when you want to show when something happened:

• 아침에 = in the morning
• 저녁에 = in the evening
• 3시에 = at 3 o’clock

So in this sentence, 아침에 tells you the time background for the rest of the sentence.

How is 추워서 formed from 춥다?

춥다 means to be cold. It is a ㅂ-irregular adjective.

When you attach -어서 / -아서, the ㅂ changes in this pattern:

• 춥다
• stem: 춥-
• ㅂ changes and combines with -어서
• becomes 추워서

So:

• 춥다 → 추워요
• 춥다 → 추워서

This is a very common irregular pattern. Similar examples:

• 덥다 → 더워요, 더워서
• 어렵다 → 어려워요, 어려워서

What does -아서/-어서 mean in 추워서 here?