Yes, at is a preposition. Whether it requires a comma depends on its position or in some cases whether it introduces a clause.
He was seen driving down the road at three o'clock. (no comma)
At three o'clock, he was seen driving down the road. (leading, needs comma)
He tried to make a turn, at which point his car left the road. (comma)
Yes, when "but" is used as a preposition, a comma is typically not placed before it. It is used to mean "except," "other than," or "besides" in a sentence.
A comma is typically used before a conjunction (e.g., and, but, or) when joining two independent clauses. However, a comma is not generally used before a preposition, unless it is necessary for clarity or emphasis.
In general, you do not need a comma before a preposition unless it is part of a larger phrase that requires punctuation. However, always defer to the specific rules of grammar or style guide you are following.
Yes, a preposition typically requires an object to form a complete prepositional phrase. The object of the preposition is the noun or pronoun that follows the preposition and completes the relationship between the preposition and the rest of the sentence.
No. There is no word or phrase in English that must follow a comma.
Yes, when "but" is used as a preposition, a comma is typically not placed before it. It is used to mean "except," "other than," or "besides" in a sentence.
A comma is typically used before a conjunction (e.g., and, but, or) when joining two independent clauses. However, a comma is not generally used before a preposition, unless it is necessary for clarity or emphasis.
In general, you do not need a comma before a preposition unless it is part of a larger phrase that requires punctuation. However, always defer to the specific rules of grammar or style guide you are following.
comma
Return to sender does not require quotation marks or a comma.
No, you do not typically use a comma after "despite." The word "despite" is a preposition that introduces a phrase, and a comma is usually unnecessary unless the sentence structure requires it for clarity or to separate clauses. For example, "Despite the rain, we went for a walk" uses a comma after the phrase, but not directly after "despite."
No it doesn't require a comma.
Yes, a preposition typically requires an object to form a complete prepositional phrase. The object of the preposition is the noun or pronoun that follows the preposition and completes the relationship between the preposition and the rest of the sentence.
No. There is no word or phrase in English that must follow a comma.
Prepositional phrases should be set off with a comma if they are nonessential or nonrestrictive information in a sentence. If the prepositional phrase provides essential or restrictive information, it does not require a comma.
No
It depends on what you are saying however usually you do require one.