What is the subject of this sentence?

[BlackCitadel]

Healthy food is a good way for a diet, but there are other factors.

- Healthy food is a good way for a diet
The subject here is Healthy food.

but there are other factors.
What is the subject here?
there or other factors?

[James M]

IMHO:

Most grammar books tell us to ignore "there" when analyzing a sentence that starts with there is/are/was/were.

There ARE a few books that claim that "there" is the subject, but MOST books assure us that "there" is just a so-called "expletive." That is, it is a word to fill in the place where one usually expects the subject.

So if we if ignore "there," we get: are other factors. Now put those three words in correct order and you get: Other factors are (exist). So the subject is "factors" ("Other factors" being the complete subject).

For example, we could say "Fifty states are (exist) in the United States." But such a sentence sounds weird. So people say "THERE are 50 states in the United States." The subject is, as you have already guessed, "fifty states."

[Bwriter]

I have never heard about expletive... When I was learning grammar I was taught that in the sentence "but there are other factors" "there" is the subject and "factors" is the object of the sentence.

[James M]

Let's see what the wonderful language professionals here tell us.

[BlackCitadel]

Thanks for the help my brothers.

[James M]

You are very welcome.

But I want you to get the best possible answer, so I am waiting for our language professionals to answer you -- and me!