请教using 的用法!you are required to register using the telephone.这句子中的USE是副词吗?为什么不可以用TO USE呢?

请教using 的用法!you are required to register using the telephone.这句子中的USE是副词吗?为什么不可以用TO USE呢? You are using translator?, Yeah,are you using whatsapp? you are using only about fifty of them的意思 求are的用法（I are you）的用法 Are you using whatsapp 翻译中文 You are using an outdated browser是什么意思 Are you using a cloning utility?是什么 you are using 是插入语吗 Are you using your cel phone? Are you using a cloning utility?是什么 趣味英语 what animal do you need when you are using a computer的意思 The range of both int and float depends on the machine you are using; 16-bits ints,which lie between -32768 and +32767,are common,as are 32-bit ints这句话的意思我看得懂,但不懂are common,as are 32-bit ints的用法请问 are common,as are 请教：think的反问句用法例如：I think you are busy now, aren't you?还是 I think you are busy now, don't I?否定句 I don't think...又是怎样使用的? Oracle 中 using的用法问题1.SELECT e.last_name,d.department_name,d.location_idFROM employees e JOIN departments dUSING (department_id );里面using （department_id 2Q:In which three cases would you use the USING clause?(Choose three.)A.You want more and more people are using moboile phones.what do you tink about that的作 请教关于do have are在疑问句中的用法搞不懂有些疑问句开头是用doyou 有些则是have you 和are you 请问这三种分别是什么情况下使用的? 这个句子是什莫时态用法are you going to be using the copying machine long?be going to 后面加动词原形,可怎么加be using啊?感觉和被动语态似的,又不是被动语态,别扭