heard +doing和do的区别使用错了，hear

heard +doing和do的区别使用错了，hear 请问be heard to do/do/doing之间的区别以及是否存在be heard do 的说法 be heard to do be be heard to be doing be heard doing be heard to doing我知道前两个是对的,后两个存在吗?若存在四个进行比较,有何区别be heard to dobe heard to be doing be heard doing be heard to doing如果不存在，前两 feel like doing与want to do 在使用上和意思上的区别 to do和doing的区别 doing和to do的区别 notice do和notice doing的区别 do,doing,does的用法和区别, doing和to do的区别 to do 和doing放句首的区别 see do 和see doing 的区别 to do和to doing的区别 heard of和heard from的区别 practice doing sth.和 learn to do sth.它们有什么区别doing 和 to do?我该怎么去使用doing和to do?我不是很清楚. MEAN TO DO 和MEAN DOING 的区别还有TRY TO DO和TRY DOING need to do 和 need doing的意思和区别 stop to do和stop doing的意思和区别 doing和to do的用法和区别?