Hello!
My name is Svetlana. I am from Irkutsks. I do not know how to write in English ,so my first post is very crooked. I will be studying.

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Хорошо!

Hello!

My name's (or, "My  name is") Svetlana. I am from Irkutsk. I do not know how to write in English, hence, my first post here, is not very crooked clear. Will be study. I want to improve!

Great effort, keep trying! If you got any queries, feel free to write to me. =)

Informal variant:  My name's Svetlana.

Formal variant:  My name is Svetlana.

  I am from Irkutsk.  

 .... so my first post is very awkward/clumsy.