I don't know how to 동사 ~ 하는 방법을 잘 모른다.

[jenny]

1. I didn't know how to use this machine to dry my clothes in a laundromat.

2. I didn't know how to use this computer to send some letters to them.  

3. She doesn't know how to write an invitation for the party.

4. They don't know how to get there with their coworkers for the party.

5. We don't know how to fill out this form for traveling to New York. 

6. She didn't know how to deal with customer complaints at her company.

7. He didn't know how to meet some foreigners for studying English.  

     *** deal with 다루다 customer complaints 고객 불만사항

[jenny]

I don't know how to explain that to her exactly. That was not a real situation.

[jenny]

She didn't know how to deal with customer complaints at her company.