yes
Not necessarily. Only use a comma when the final please is a request. For example, we say Do as you please; but Sit down, please.
No. There is no word in English that always requires a comma before it.
Typically, there is no need for a comma before the word "as." However, using one is not technically wrong, just superfluous.
No, a comma does not go before the word 'in'.
This will depend how the word "please" is used. Most sentences are unlikely to need a comma after the word, e.g. ""Please may I have a chocolate?" or "Please get me that book." However, a cmma could be used in some instances, e.g. "If you please, would you get me that book?"
No, you do not need to add a comma before using the word "plus" when connecting two phrases or clauses. The word "plus" can be used as a conjunction to join two ideas without requiring a comma.
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."
Not necessarily. There is no word in English that requires a comma before or after it.
Generally, the comma should be placed before the word "otherwise" when used to introduce an alternative or contrast. For example: "I need to leave now, otherwise I will be late."
The comma is an overused bit of punctuation. It is meant to separate ideas and to indicate pauses in speech. Try to avoid using a comma unless it seems necessary for the sake of clarity. A comma comes before "please" only if it begins a new clause, or to indicate an impatient, long-suffering attitude. For example we normally write " Would you please take out the trash." If we wrote " would you, please, take out the trash," it would be to indicate that impatience, as if to say Would you - and I'm asking this for the hundredth time - please take out the trash.
Yes, but very rarely, if the sentence is short, you don't actually need it!
Not necessarily. There is no word in English that requires a comma after it or before it.