[MikeNewYork]

Originally Posted by rewboss

In modern English, the subject comes before the main verb. Most exceptions are for poetic or literary purposes and deliberately break the rules for effect. There some other common exceptions, which are essentially fossils:

The "there is/are" construction (and "there exist(s)");
"Hello," said Mary.

These break the usual rules of word order in modern English. And that is the source of the error, which has now become so common that many native speakers no longer perceive it as an error.

I understand your view. But how can "there is..." with a dummy subject restore that word order?