Is the word there'd a pronoun or a verb?

Answer 1

The contraction"there'd" is a shortened form of "there would" or "there had".
The contraction "there'd" is a combination of the pronoun"there" and the verb "would" or "had".

The contraction "there'd" functions as a subject and an auxiliary verb in a sentence or a clause.

Examples:
I thought there would be more time between flights.
Or, I thought there'd be more time between flights.

There had been a candy shop in this space before the taco stand.
Or, There'd been a candy shop in this space before the taco stand.

Answer 2

The word "there'd" is an informal contraction for the pronoun "there" and the auxiliary verbs "would" or "had".
The contraction "there'd" functions as a subject and verb of a sentence or a clause.
The word "there" is a pronoun only when it introduces a sentence or a clause. The word "there" also functions as an interjection, an adverb, and a noun.

Examples:

There had been music and food at the street fair.
There'd been music and food at the street fair. (subject and auxiliary verb)

They told me there would be a sign on the door.
They told me there'd be a sign on the door. (subject of the dependent clause and auxiliary verb)

Answer 3

The contraction "there'd" functions as a subject and an auxiliary verb in a sentence or a clause.

Example sentences:

I was hoping there'd be more time between flights.

There'd been a candy shop in this space before the taco stand.