need sb to do sthsb 指什么sth 指什么

need sb to do sthsb 指什么sth 指什么 什么情况下sb hope sb+to do sthsb 同一个人 sb hope sb+________sb两个人 sb hope sb +___________ 英语短语中人称变化Let sb do sthHelp sb to do sthIt's one's turn to do sthSb do one's homeworkIt's time for sb to do sth等这些短语中的动词随不随人称变化 谁能用sb be free to do sth sb be busy with sth sb b谁能用sb be free to do sthsb be busy with sth sb be busy in doing sth各造2个句子, 英语语法中,need sb sth是need sb to do 还是need sb do /doing sth? 有没有need sb.to do need sb to do sth 用法 let sb do sthsb代表什么?为什么加do?请详细说明一下这个句子. need sb to do sth的sb要是宾格吗? play games with sb,need to do sth ,call sb need sb do sth还是need sb to do sth?有什么区别 need sb to do和need sb doing有什么区别?两个都正确吧? need sb.to do sth.可不可以换成need sb.doing sth. need sb to do和need sb doing有什么区别?两个都正确吧? need sb to do,need如果变成情态动词,need sb to do 是否要变成need sb do?这是个句型吗?有人说可以这样搭配,有人说不可以,有无need sb do的形式? need to sb 有没有need sb do 英语固定词组1,need sb 是do sth 还是 to do sth2,help sb 是do sth 还是 to do sth