423. The real subject comes after the verb when we use the introductory word it. As for example:

To go is really the subject of the sentence. To go will not be safe.

It is sometimes the real subject of a sentence, as in the sentence; It is a wonderful story.

Here it is the subject of the sentence and a wonderful story is the predicate complement. But in the sentence:

To hear him tell the story is the real subject of the sentence. The first sentence, It is a wonderful story, could not be rewritten, but the second sentence could be rewritten, as follows:

424. The introductory word there reverses the order of the sentence, just as the introductory word it. The real subject is used later in the sentence. As for example: