Weather and common changing stems
For rain and snow, say and . Descriptions such as and already mean is cold/hot. Do not add a form of to be.
Some stems ending in change to before : 춥다 → 추워요, 덥다 → 더워요. The vowel then merges. 돕다 → 도와요 is a common exception with . Not every final changes: learn 입다 → 입어요 as a regular example.
Use the practical instruction . A reason and its consequence can be separate sentences: . Productive past verbs follow in the next unit.
| Form | Example | Meaning |
|---|---|---|
| is cold | ||
| is cold | ||
| is hot | ||
| is hot | ||
| helps | ||
| helps | ||
| wears | ||
| wears | ||
비가 와요.It is raining.
오늘은 추워요.It is cold today.
오늘은 더워요.It is hot today.
우산을 가져가세요.Please take an umbrella.
친구를 도와요.I help a friend.
비옷을 입어요.I wear a raincoat.
Practice 1/6 · Finding words
Notice the useful forms
Tap the highlighted form described in this unit.
.
It is raining.
.
It is cold today.
.
It is hot today.
.
Please take an umbrella.
Practice 2/6 · The right form
Choose the friendly polite form
Choose the form that fits the English meaning and the polite sentence.
비가 .
It is raining.
오늘은 .
It is cold today.
오늘은 .
It is hot today.
우산을 .
Please take an umbrella.
친구를 .
I help a friend.
비옷을 .
I wear a raincoat.
Practice 3/6 · Fill the gaps
Complete a short message
Fill the gaps with the words from the box.
오늘은 .
It is hot today.
우산을 .
Please take an umbrella.
친구를 .
I help a friend.
비옷을 .
I wear a raincoat.
Practice 4/6 · Building sentences
Build useful sentences
Put the words in order.
Yes. It is hot today.
Yes. Please take an umbrella.
Yes. I help a friend.
Yes. I wear a raincoat.
Practice 5/6 · In situations
What would you say?
Choose the right words for the situation.
It is raining.
You say:
Use the form and meaning explained in this unit.
It is raining.
You say:
Use the form and meaning explained in this unit.
It is cold today.
You say:
Use the form and meaning explained in this unit.
It is cold today.
You say:
Use the form and meaning explained in this unit.
It is hot today.
You say:
Use the form and meaning explained in this unit.
It is hot today.
You say:
Use the form and meaning explained in this unit.
Please take an umbrella.
You say:
Use the form and meaning explained in this unit.
Please take an umbrella.
You say:
Use the form and meaning explained in this unit.
Practice 6/6 · Matching
Connect messages and meanings
Match the pairs.

Unit complete
