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."
No
no
Not necessarily. There is no word in English that requires a comma.
A comma is not typically used before "therefore." However, a comma may be used after "therefore" to separate it from the rest of the sentence when it is starting the clause.
yes
Yes, you can use a comma before the word "but" when it connects two independent clauses. For example: "I wanted to go to the store, but it started raining."
no
You do not always need to use a comma with the word sobut if you do, it is best to only use the comma before the word. An example is "The travellers faced a long drive home, so they decided to stop at MacDonald's first."
Depending on what the sentence is about you may use a comma before 'called';however, in some instances you may not be allowed to place a comma before the word called.
A comma is typically used before "nor" when it is connecting two independent clauses. For example: "She did not want to go, nor did she have time."
No, a comma does not go before the word 'in'.