Linking verb - seem

[sierkj]

(1) That technology is overwhelming our lives has become obvious.
--> It has become obvious that technology is overwhelming our lives.

Subject: That technology is overwhelming.
Fake subject: It
Verb: has become
Complement: obvious

2) It seems that he is a good person.
--> That he is a good person seems ...?

In this case, why can't we change the sentence form?

Subject: That he is a good person
Fake subject: It
Verb: seems
Complement: ???

If we move the subject to the front, the that-clause comes to the front, and it appears like there is no complement.

 

[emsr2d2]

Please tell us where you found the original sentence.

 

[sierkj]

Please tell us where you found the original sentence.

Title: The Crucial Grammar of English Sentences
Author: Chihoon Kim

The sentences used in my original post are not directly from any text. It was a question that I had after being inspired by the page that I have attached to the post.

Thank you for your help.