yes you do in some cases
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, it is appropriate to use a comma before "thus far" when it is used as an introductory phrase or to set off a dependent clause in a sentence.
Use a comma before "but" when it is followed by an independent clause. Do not use a comma after "but" unless it is followed by an introductory phrase or clause.
No, you do not usually use a comma before the word "whose." However, if the phrase following "whose" is non-restrictive (provides additional information that could be omitted without changing the meaning of the sentence), then a comma may be used.
Use "is" after a prepositional phrase that refers to a singular subject and "are" after a prepositional phrase that refers to a plural subject. For example, "The book on the table is mine" (singular subject - book) or "The flowers in the garden are beautiful" (plural subject - flowers).
after my breakfast
prepositional phrase
You would typically use "me" after a prepositional phrase when it acts as the object of the sentence. For example, "He gave the book to me."
Say your sentence aloud. If you find you pause before the word 'therefore', you will probably want to insert a comma. If you do not pause, no comma is required. Use a comma when the sense requires it, not because you have a specific word in your sentence.
No, you do not need to use commas before the word "regarding."
It is not necessary to use a comma immediately following the word "hence." However, if the phrase following "hence" is a separate clause, then a comma may be used to separate the clauses.
Almost is an adverb.A phrase is more than one word so a prepositional phrase has two or three or more words.I saw the book under the table.In this sentence under the tableis a prepositional phrase.