What is the grammatical mistake in this sentence: There is many options to choose from for the upcoming event?

In the sentence "There is many options to choose from for the upcoming event," the word "is" is the grammatical mistake because it does not agree in number with the plural noun "options." Since "options" is plural, the correct form should be "are" instead of "is."

Using "are" helps ensure subject-verb agreement, which is essential for constructing grammatically correct sentences. In this context, “are” corresponds appropriately to the plural subject "options," reflecting that there are multiple choices available for selection. Therefore, to correct the sentence, it should read: "There are many options to choose from for the upcoming event."