you would put it after
No, a comma is not needed before and after the word "again" if it is in the middle of a sentence.
A comma typically goes before "so" when it is used at the beginning of a sentence to indicate a reason or result. However, when "so" is used as a conjunction in the middle of a sentence, it does not usually need a comma before it.
,I don't know maybe in the middle of a sentence
Yes, typically a comma is used after a transition word or phrase at the beginning of a sentence to separate it from the rest of the sentence for clarity.
no. if but before is a sentence on its on and after but is a sentence on its own then put a comma before but.
All you have to do is put a comma and a transition in between the two independent clauses.
A comma usually comes before and after "however".I would love to go to the beach with you, however, I have to work.
Commas are cool, however, they can be complicated as well. (indicates a pause)
Not necessarily. Commas are a feature of sentence structure. There is no word or phrase in English that requires one.
Not at the beginning of a sentence. As you know is a clausal sentence adverbial, and as such it should generally be set off by punctuation. That would mean a comma after it at the beginning of a sentence, a comma in front of it at the end of a sentence and commas on both ends when it appears in the middle of a sentence: "He is, as you know, rather obstinate."
Yes, a comma is usually required before the phrase "formerly known as" to separate it from the rest of the sentence. This helps to clarify the transition from the previous name to the new one.
No No