you would use it when making a list ex: I need to get food, water, and dog treats.
ALSO you use it to take a breather, look at this sentence:
i went to the shop and bought loads of nice things for my mum and dad and then came home and opened some Christmas presents then we went on a walk and drank Hot Chocolate and had a lovely time and saw my grandparents.
that is much harder to say than this:
i went to the shop and bought loads of nice things for my mum and dad, then came home and opened some Christmas presents, then we went on a walk and drank hot chocolate and had a lovely time and saw my grandparents.
when using a comma, don't put "and" next to it. x
You dont use a comma AT ALL!
Yes, a comma should be used after "which" when it introduces a nonrestrictive clause in a sentence.
No. After the word and comma can not be used, as it is grammatically inappropriate to use comma after conjunctions such as and, which are called coordinate conjunctions.
Yes, you should use a comma before "Jr." when writing a person's name to separate the person's last name from the suffix. For example, "John Smith, Jr."
No, a comma is not necessary.
no
no
You can use a comma after an opener , so if it is 'Finally' the opener you are talking about, then yes.
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."
In a company name such as "ABC Corp," do not use a comma. However, use a comma in the formulation, "ABC, Inc."
You can use ", and" or just "and" but not just a comma.
You add the comma before the connector.