it very hard to还是it's very hard to?

如果不作主句,可以用it very hard to,如:
I found it very hard to understand.
作主句一定要用It's very hard to...

it's very hard to 对
hard是困难的意思 这是一个英语常见句型 It is +形容词（+for/of sb.)+to do sth.
中文意思是 对于某人来说做某事怎么样
其中It是形式主语 不定式才是真正主语

it's very hard to do sth.正确 做……很难
it very hard to句子中缺少谓语动词

是 it's very hard to。。。

hard 是形容词，不能做谓语呀， 要靠is这个系动词啊~~~ 系表结构嘛~~~

it's very hard to 对

it's very hard to 是对的
相同的用法有：
it's very difficult to do sth