just you need conversation and exercise

Hey how are you
Well, I think you've to know few Arabic sentences, how to make sentences in Arabic, and have a conversation with Arabic native speakers.  In addition to writting sentences and paragraphs in Arabic and make Arabic natives speaker correct them to you.
Good luck.

i think u must make chat withsomeone from arabic country u know i am yemen and i want learn englig and i can teach u arabic ok      s_thelover2003@yahoo.com

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