18.46 The there of existential sentences differs from there as an introductory adverb in lacking stress, in carrying none of the locative meaning of the place-adjunct there, and in behaving in most ways like the subject of the clause, doubtless reflecting the structural dislocation from the basic clause types:
(i) It often determines concord, governing a singular form of the verb (cf 10.34 ff) even when the following 'notional subject' is plural:
- There's some people in the waiting room. < informal >
occurs alongside:
- There are some people in the waiting room.
(ii) It can act as subject in yes--no and tag questions:
- Is there any more soup? There's nothing wrong, is there?
(iii) It can act as subject in infinitive and -ing clauses:
- I don't want there to be any misunderstanding.
I don't want there to be any misunderstanding.
- He was disappointed at there being so little to do.
He was disappointed at there being so little to do.
- There having been trouble over this in the past, I wanted to treat the matter cautiously.
There having been trouble over this in the past, I wanted to treat the matter cautiously.