Yes. Example: They used many different building materials including wood, metal, stone, etc.
Not necessarily. There is no word or phrase in English that requires a comma before or after it.
No. Usually in a list there is/are no comma(s). The list would instead go something like this: Mum's Shopping List: #Bread #milk #soup etc, etc.
You do not use a comma before III, or before any Roman Numeral, if it is part of a name such as King George III.
I do not use a comma before and after that word, therefore you will not see it in any sentence I have written.
Use a comma before a parenthesis when the information within the parentheses is not necessary for the sentence to make sense. Use a comma after a parenthesis when the information inside the parentheses is necessary for the sentence to be understood.
When which is used to introduce a nonrestrictive adjectivial clause it must it must follow a comma. But there are numerous examples where which does not need to follow a comma. Including: Which melon do you want? I can't tell which melon to buy.
If you mean "do we use a comma before 'etc.'?", then yes we do. Remember to take some paper, a pen, etc. (Oxford ALD).
No. Usually in a list there is/are no comma(s). The list would instead go something like this: Mum's Shopping List: #Bread #milk #soup etc, etc.
before
No, a comma is not necessary.
You would use a comma before it. Xerox, Inc.
no
Twice, with a comma before and between, like this: The frumpy lecturer went boringly on and on ad infinitum and even beyond, etc, etc.
if the main or most important part is before the main parts you use a comma, but if it is after then no comma
Yes, you can put a comma before except. Example of a comma before except in a sentence- She can do it, except that the mountain is too steep
You do not use a comma before III, or before any Roman Numeral, if it is part of a name such as King George III.
no
No