The words here and there have generally been labeled as adverbs even though they indicate place.

In sentences beginning with here or there, the subject follows the verb.

Ex) There (is / are) two pins on the table.

In this sentence 'two pins' is the subject of this sentence. As in a sentence beginning with 'here' or 'there', the subject follows the verb. As the subject is plural,we have to use a plural verb 'are'. 'Is' is a singular verb, but 'are' is a plural verb.

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Is the explanation above grammatical? Are there any missing articles? Don't we have to put 'a' or 'the' before 'place'?

Everything looks good, with a few exceptions:

1. Remove the word "As" at the beginning of the second sentence after your example sentence.

2. Put a space after the comma between "plural" and "we" in the third sentence after the example sentence.

3. Consider removing the last sentence since it's repetitive.

You don't need "the" in front of "place" in the very first sentence.

Nice writing.

=)

The explanation above is grammatical, but there are a few improvements that can be made.

First, let's address the question about missing articles. In the sentence "There (is / are) two pins on the table," there are no missing articles because "place" is not being referred to in that particular sentence. The sentence is discussing the subject-verb agreement in sentences starting with "here" or "there." So, adding "a" or "the" before "place" is not necessary in this context.

Regarding the grammar of the explanation itself, the usage of "as in a sentence" is slightly unclear and could be improved. Instead, you could rephrase it as: "In a sentence beginning with 'here' or 'there,' the subject follows the verb." This makes it clearer that you are providing an explanation of a general rule.

So, the revised explanation would be:

"The words 'here' and 'there' have generally been labeled as adverbs, even though they indicate place. In a sentence beginning with 'here' or 'there,' the subject follows the verb. For example, in the sentence 'There (is / are) two pins on the table,' 'two pins' is the subject. Since the subject is plural, we use the plural verb 'are.' 'Is' is a singular verb, while 'are' is a plural verb."

I hope this revised explanation clarifies things for you!