difficult doing sth 有这个句式吗？ difficult有哪些句式呢？

difficult for sb to do sth 和difficult for sb doing sth 有什么区别 请问有be difficult to do sth 这个词组吗? 是不是有这样的句式：take sth in doing sth find sth.adj.有没有这个句式? 有没有cook sb.sth.这个句式? 英语中有些句式是 ()sb. do sth, ()sb. to do sth, ()sb.doing sth,请问有哪些 want sb doing sth,这个句式对吗 请问有没有make sb doing sth这种句式? difficult有哪些近义词? 是否有have a difficulty doing sth.It's difficult to do sth.It's 有know sb do sth句式吗 有没有suitable to do sth这个句式