A nice puzzle

[Brilliant1]

A puzzle
Can u guess who I am? you need to be clever enough to know me. Ok I am going to tell you something about me. I am a modal verb .I was discovered when people knew English language. A verb is wanted after me to complete my meaning.My name is very easy .It is made of a few letters.I am used to make offer and sometimes for request .I am used for making prediction .For future facts ,you can use me.I am very important for making questions. In sentences , when you find words like, tomorrow,next,soon ,I appear . Now you should know who I am. ايه دندن
طالبة بالصف الثانى الاعدادى بمدرسة الحديثة بنات- منوف - محافظة المنوفية