What part of speech at?

"At" can be several parts of speech depending on its use in a sentence. Here are some of the most common:

* Preposition: This is the most common use. It shows the relationship between a noun or pronoun and another word in the sentence. For example: "I am at the store."

* Adverb: "At" can also act as an adverb, modifying a verb, adjective, or another adverb. For example: "The train arrived at 3:00 pm."

* Part of a phrasal verb: "At" can be part of a phrasal verb. For example, "I came at the problem from a different angle."

To determine the part of speech of "at" in a specific sentence, look at its function in the sentence and how it relates to the surrounding words.