一般副词后面+ing for doing .after doing.还有就是现在进行时过去进行时
你说的enjoy doing是固定的
不及物的动词一般都+to
字典上会说及不及物
动词介词后面+宾格还有那些固定的，说出来啊接-ing 的动词和短语:practice ,enjoy, advise, allow, permit, avoid, consider,finish, give up, cannot help, imagine, include, keep ,mind, miss, put off, delay,resist, suggest , can’t stand,