じゃない and でわありません こんにちは、 In my text book it says that though じゃない is informal it is used in everyday conversation as long as you put です at the end. It says that でわありません is the formal version, but in class I was taught that でわありません is the used in everyday conversation. Which version is the most appropriate? ありがとうございます！

これらのぶんしょうがただしいですか。Are these phrases correct? あんたのついたちはどうでしたか How was your day? あなたはなにわしたか What did you do? いまなにしてるのか What are you doing now? わたし は ねないと いけません I have to go to bed あとではなす Talk later Please correct any errors, and please give me alternatives if it's better to be more formal/informal or if certain questions aren't asked often and/or asked in a different way in Japan etc. ありがとうございます。

Is this grammar for listing correct? これはぶんぽうがただしですか わたしはりょこうとどくしょがすきです 'I like travelling and reading'? これわただしですか (*Also sorry for any vocab errors, could you help me on those too?) ありがとうございます。