Which sentence is correct?

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I'm looking for a native english speaker. I can you teache brasilian portuguese. So We can make a exchange. Thanks!!

Please only native English speakers from the UK, USA, Canada, Australia answer my question. I cannot accept replies from non-native English tutors or speakers. Thank you for understanding. Thank the native English speakers very much in advance. 1a. I shall write tomorrow. 1b. I will write tomorrow. 2a. Who will lend me a cigarette? 2b. Who shall lend me a cigarette? 3a. Very well, if you want to go, go you shall. 3b. Very well, if you want to go, go you should. 3c. Very well, if you want to go, you should go. 3d. Very well, if you want to go, go you will. Question: Which is grammatically correct in each pair? Do they have the same meaning in each pair?

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Hi everyone, what does " my mom puts on my scarf" mean? Thanks.

Which word completes the idiom correctly?

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Looking for a language partner for Arabic. Can be Egyptian, Moroccan, or Saudi dialect too. Thank you!