help sb是加to do sth还是doing sth还是do?

help sb是加to do sth还是doing sth还是do? help sb.do sth.还是help sb.to do sth. help sb.do sth还是help sb to do sth? help的用法help sb.doing sth还是help sb.to do sth tell sb doing sth还是tell sb to do sth take sb.doing sth.还是take sb.to do sth. 到底是help sb.do sth.还是help sb.to do sth. 是help sb.do sth.还是help sb.to do sth. show sth.to do sb.还是show sth.do sb.还是show sth.doing sb. make sb to do sth还是make sb doing sth还是make sb do sth help,open的过去分词是什么?是before sb do sth.还是before sb doing sth... help sb do sth.但是 help do sth 还是 help to do sth?