No
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 period should come before the footnote at the end of a sentence, while a comma should not.
No, a comma does not always come before "for instance." It depends on the structure of the sentence. A comma is typically used before "for instance" when it introduces a non-essential or parenthetical element in the sentence.
It could go either ways?
The comma typically comes before the conjunction "but" when it is used to connect two independent clauses. If "but" is used to connect two words or phrases within a single sentence, a comma is not necessary.
Yes
The correct order is "but ca-ma".
If a comma is needed, it normally comes after parenthesis.
The comma would come after it.
Not necessarily. There is no word in English that requires a comma before or after it.
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.