I can speak English. - ability, I can't go out. - disability/ they don't let me , Can I use your computer? - asking for permission (yes/no), Could you give me some water, please? - asking for permission politely (yes/no), Can I help you? - offer , I must do homework. - It's my duty. (I say so) 100%, You mustn’t talk in the classroom. - Prohibition (100%), I have to clean my room. - My parents told me. It's my duty., You don’t have to wear a sports suit here. - Nobody tells me. It's not my duty., You should eat vegetables every day. - advice, They might come. - 50/50 Maybe they'll come, maybe they'll not.,

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