Originally Posted by forum_mailExistential "There" goes hand-in-hand with a certain verb, notably copular BE; "There is", "There are", "There appears to be", "There seems to be" are set pairs:Originally Posted by forum_mail
There seems to be a problem.
There appears to be a problem.
There is a problem.
To form an existential "There BE" structure, invert the subject and the verb, like this,
Canonical Structure: A bottle is on the table.
Existential There Insertion: There is a bottle on the table.
Note, the phrase "on the table" tells us where the bottle is located, which makes "There is a bottle on the table" a Locative Existential Structure.
If the verb is not a form of BE, the result is ungrammatical (*),
All of a sudden a bottle broke on the table.
*All of a sudden there a bottle broke on the table.
All of a sudden there was a knock at the door.
If the locative is missing, the result is ungrammatical (*),
A dog was running in circles.
*There was a dog running in circles _________. (Where was it running?)
There was a dog running in circles on my porch.
I trust you will be able to complete the rest.
All the best,