Hello, I'm an expert in English grammar and usage. Let's dive into your question about the word "has."

In English, "has" is the third person singular form of the verb "to have." It is used when the subject of the sentence is he, she, or it, or when the subject is a singular noun or pronoun. For example, "She has a book" or "The dog has a bone."

Contrarily, the plural form of "to have" is "have." This is used when the subject is I, you, we, they, or when the subject is a plural noun or pronoun. For instance, "We have a meeting" or "The cats have a ball."

So, to answer your question directly: "Has" is singular, and "have" is plural.

read more >>

Anyway, I know "have" is used for plural subjects and "has" is used for singular subjects (wrong term, I'm sure), but I'm unsure as to whether the subject is the plural "guns" or the singular "invention." Microsoft Word is suggesting the latter sentence.read more >>