Commas depend on the grammar and sentence construction.
Without a comma before with...
Sally wore a pin-stripe suit, black hosiery with red bows, and carried a black striped handbag.
With a comma before with...
Sally wore a pin-striped suit, with a matching handbag.
It is called an Oxford comma.
Yes, typically a comma is used before the word "before" when it is used to introduce a dependent clause or phrase. For example, "She studied for hours before taking the exam."
A comma usually comes before "which" when introducing a nonrestrictive clause in a sentence. If "which" is part of a restrictive clause, then a comma is typically not used.
A comma is generally not needed before "because" in a sentence. However, if "because" is introducing a dependent clause, a comma can be used after it to separate it from the main clause.
No, typically a comma is not used before "III" when it follows a name or title.
A comma is typically used before "but" when it connects two independent clauses. However, if "but" is joining phrases within a single sentence, a comma is not necessary.
The comma should come before the word "but" when it is used to separate two independent clauses. For example: "I wanted to go to the store, but it started raining."
If "so" is used as a coordinatingconjunction, the comma goes before it. Example: Martha is really sick, so she is going to see a doctor.If "so" is used as an adverb, no comma is needed. Example: He is so very happy.
A comma is not required before the word "because" when it is used in the middle of a sentence for a standard causal relationship. However, if "because" is used at the beginning of a sentence to introduce the reason, a comma is usually used after it.
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.
No, a comma is not always necessary before "which" in a sentence. Use a comma before "which" when introducing a nonessential clause, but do not use a comma before "which" when introducing an essential clause.
A comma before "and" depends on the context. Use a comma before "and" in a list of items (e.g., red, blue, and green). However, do not use a comma before "and" when it connects two independent clauses unless it is needed for clarity or to avoid confusion.