用 Sb who do sth be like sb else doing sth else who,when/once

用 Sb who do sth be like sb else doing sth else who,when/once when sb.do sth.还是 when sb.doing sth. like sb do sth还是 like sb doing sth 或是 like sb to do sth? 喜欢做某事用sb. like doing sth.还是sb. like to do sth.? 什么时候when sb do sth 可变成when doing sth sb.who is doing sth.能不能省略“who is”? 英语翻译allow sb.to do sth.ask sb.to do sth.be busy doing sth.be in china-------- like doing sth------- do sth wish sb ------ 用 forgive sb for sth / doing sth 造句 be+adj+enough+to do sth 用there be sb doing sth 造句 when sb doing sth,sb doing sth 这个句型可不可以? there be sb/sth doing