استخدامات ( as ) الأساسية

بعض استخدامات ( as ) الأساسية :
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اداة ربط بمعنى بينما while
As David was playing tennis, he saw his dad

تأتي في المقارنة بمعنى مثل as ... as
Mary is as tall as her brother

كحرف جر لتحديد طبيعة عمل (بوصفه كذا) بمعنى كـَ
He works as a taxi driver

تأتي بعنى مثلما
Please do as I told you

تأتي بعنى كما (في بداية الكلام للتعليق على موضوع معين)
As you know, I decided to leave next week
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وفقكم الله.