10 most difficult language to learn

Do you ever wanted to learn a new language? I always do. This all are just my own toughs so 10 most difficult language to learn if I'm wrong please correct me.

1. Korean
   
2. Chinese
   
3. Danish
   
4. Thai
   
5. Turkish
   
6. Slovak
   
7. Finnish
   
8. Hindi
   
9. Hungarian
   
10. Arabic
    

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