In the second, there should not be a comma.
Without the comma, those sentence should be correct.
Before you go throwing in commas all willy-nilly, you first have to decide what
by the FANBOYS, you do not need to insert the comma before the FANBOYS.
Let's have a look at how commas are used before so in the middle of a sentence. Here's a tip: Commas can be tricky, but they don't have to trip you up.
It is important to note that a comma should not be used when the clause or phrase
Example: Before she went to class, Katie talked with h. Common words that
The comma placed before and (or, nor) is not obligatory, but it is recommended because it
#3 – THE COMMA IN A COMPOUND SENTENCE: Use a comma before and, but,
Often, we put a comma before “so” because it's a conjunction.