havr sb doing get sb doing意义和用法的区别是什么?请

get sb to do 和 get sb doing 区别 have sb do和have sb doing的区别是什么 sb is doing sth和sb doing的区别? keep on doing,keep doing ,keep sb doing用法的关联和区别 see sb doing 和see sb do区别用法 see sb do see sb doing 区别 和用法 stop sb doing与stop sb from的区别和两者的用法（详细） have sth done和get sth done和get sb doing的区别和意思 ,get sb to do allow sb.to do和 allow sb.doing 的区别 listen sb.doing 和listen sb do sth.的区别 see sb do和see sb doing的区别 关于have sb doing和have sb do的区别～