I don't think it possible to master a foreign language without much memory work.without后面的都是状语,to 后面是真正的宾语
it作形式宾语：当不定式（短语）句子中作宾语时,为保持句子结构平衡,避免句式结构的混乱,常用it作形式宾语,而将真正的宾语放在句尾.此时it仍只起先行引导作用,本身无词义.常考查的句式为：主语+ think/ find/ feel/ consider/ make/ regard/take it for granted /see to + it + adj + to do sth
做形式宾语的词汇有