be opposed to doing sth 是被动语态么?

be opposed to doing sth 是被动语态么? be used to doing是被动语态吗 be used to doing 有没有被动语态和现在完成时 be made to do还是doing?（被动语态） 搞不懂为什么make sb do sth 在被动语态时是be made to do sth. to be是被动语态吗? A let B do sth变为被动语态,是B be let do sth还是B be let to do sth send 被动语态send sb sth变为被动时是send to sb sth还是什么？ make oneself/sth done和被动语态的be made to do sth有什么区别. be+being+adj.是被动语态么? see sb.do sth.在被动语态中,要加上省略的to,那see sb.doing sth. see sb.doing sth.变成被动语态怎么变呢?