you would use a comma in a list.
e.g.;
eggs, milk, bread, cheese and coffee.
you would use it in a sentence that uses separate clauses.
e.g.;
being the kind man he is, Bill gave the charity the highest amount of money, donating over £100.00.
It would be appropriate to use a comma between compound subjects or compound verbs.
use a comma
I would expect a comma to be used, unfortunately, this is not always the case!
The comma would come after it.
You would use a comma before it. Xerox, Inc.
I would not use a comma in the phrase varied native fauna.
If it is a business letter, don't use the th; use the comma and year. That way it is absolutely clear.
It would look something like this: "Thanks; have a great weekend." You wouldn't really use a comma.
In general, you do not use a comma after "and". One situation in which you would use a comma after "and" is where the "and" is followed by a phrase set off by commas:"Symptoms can include headache, fever, nausea, and, in rare cases, paralysis."It is much more common to use a comma before "and", or to use no comma at all, either before or after "and":"I will set up the equipment and organize the materials, and you will give the first presentation. ""I walked around the pond and saw some turtles, an Eastern Cottontail rabbit, and a Great Blue Heron."
A comma is used as a means to pause mid sentence. ____________________________________ I would like to eat something, such as an apple.
There is not rule that says you must use a comma before the word you exclusively. You would have to use a comma if the sentence would require one. Now if you were writing down the slang of 'you are' you would write it like this; you're. There must have been a sentence example for your homework assignment and your teacher wanted to know if you needed to use a comma in that sentence. Here is an example of the correct usage of the comma. I celebrate Easter, you don't, but I do every year.
There are a number of situations which would be inappropriate to use a comma in. The common ones include when breaking a sentence and when stating number of items among others.