我记得是 it is easy to do sth

我记得是 it is easy to do sth it is easy to do sth.跟it easy to do sth. it is easy for sb to do sth 不是“it is +adj.+for sb to do sth”吗,那为什么是"he finds it easy to it be adj to do sth与sth be adj to do区别 eg.It is easy to take It's easy +doing sth.还是＋to do sth.? I find it is easy to do sth ,这里的IS可加可不加吗 是it is time to do sth还是 it is the time to do sth easy 的用法是easy to do sth 还是easy doing sth 容易做某事 是easy to do sth 还是be easy to do sth 是it is difficult to me to do sth That is easy——sb.to do sth