take interesting in doing sth 还是take an interesting in doing sth

都不对 应该是 take后面应该是名词 interesting是个形容词

take interest in doing sth

两个都不对吧，interesting 是个形容词，interest 才是名词，可以说 take an interest in doing sth 个人觉得是这样的~~

Be interested in doing sth or sth
interesting是形容词,形容事物有趣的,前面不可以直接与动词搭配