There is no need to disrupt the clause with a comma, unless you wish to achieve a special stylistic effect. The meaning is not changed in either case. Respectfully, Gleb Chebrikoff

Both are awkward in that they leave us unsure of whether it is the book or the office that is 'yours'. The comma does not help to solve this dilemma, but there should be no comma because the book is defined by the relative clause.

I have a book in my office. I borrowed the book from you. If you combine the two sentences, which one is right? 1. I have the book in my office which I borrowed from you. 2. I have the book in my office, which I borrowed from you.

I'd strongly suggest using one. It's clearly a compound predicate, but the two "actions" are in such contrast to one another, they need to be separated in some way for clarity. It would make perfect sense to complete the compound

He gave her the reins of a pony, and she grasped its saddle horn but stood with her forehead resting against the animal's flank. Must I insert a comma after horn ? I think there is a compound verb here, so there is no need for a comma. she

I'd add a comma, but there's nothing wrong with the grammar. While I cooked dinner , I listened to some music. (I hope you'll let me listen to some while I eat it. ) CJ

So, If the question is the thread title, "Should a 15 yr old who committed premeditated murder be tried as an adult", then the answer is no. or If the question is the thread title, "Should a 15 yr old who committed premeditated

In certain short clauses, commas are probably not necessary (as in Dimsum's last sentence), but certainly where it appears e.g. in a subject noun phrase, it is appositive (not 'parenthetical'), as the verb number is governed by the subject itself:

Is as well as considered a parenthical phrase? Should it be set off with commas? Thanks! My non-linguistic view thinks not. I may be wrong but one of the "as well as" usages has a prepositional property which is typically

Hi again, You´re right. I was refering to sentences like the last two. And I found that you added a ,(comma) in number 3 examples. So if I happen to see sentences like this: "On Saturdays I go to the park", I have to add the comma,