You add one to the previous entry but you write the number also in your language and romanised. 

I will start


1 - Uno

Can I count in a language I'm learning?

2 - ee, dul (Korean)

3.   त्रीणि (treeni)

 ColourMePurple:

Can I count in a language I'm learning?

2 - ee, dul (Korean)

It would be better to let a Korean participant to make it. You should use      이    Ee.

So, use your language...

 Blossom:

10.สิบ (sib)

Close to Korean... Interesting!

12. Twelve द्वादश (dvaadasha)