"to access" or "to be obtained"

Do not call me 'dear': it is rude unless I am your close relative or loved one.

These are OK:

A) He said that kind of information is difficult to access.

B) He said that kind of information is difficult to obtain.

First of all, I am very sorry for my mistake.

I did not know that.

And I really thank you for replying to my question even though there was a rude expression.

Regarding B), if it ends with "to be obtained", why it is not acceptable?

I would like to know the reason, because the point was questioned in my workbook.

Is it grammatical reason, or is it just

This information is difficult to access. (to access information)
This information is difficult to obtain. (to obtain information)
(Not to be obtained - We don't say *to be obtained information.)

Both sentences follow the same grammatical pattern.

CJ

Thank you for your reply.

> He said that kind of information is difficult to obtain. (Type C)

In this case, "He" serves as the subject of the verb "obtain".

(He obtains the information.)

But

> He said that kind of information is difficult to be obtained.Type D)

In this case, I could think "information" is the subject which is to be obta

AnonymousCan't we think in this way and can't be both correct in grammatical point of view?

No, I'm afraid not, and it has to do with the grammar of certain adjectives like difficult, hard, and easy, which do not combine with a passive infinitive.

This problem is hard [to solve / to be solved

Dear Mr. Calif Jim,

Thank you very much for your reply.

With many simple sample sentences, it was very helpful for me to understand the background of the grammer.

I have never read this kind of topic in textbooks of English grammer written in Japanese.

This site is very helpful to know living grammer.

Thank you again for your kindness and hearty consid