Do not use a comma to separate a verb from its subject or object.
Looking through the text for imagery, would be a useful thing to do.
Josephine shouted loudly, [that she could not go on without Napoleon].
Don’t use a comma before the first or after the last item in a series.
Members of the finny tribe, glistened, swerved, and flashed as they swam under the walking bridge.
The response by the administration was rapid, swift, and just, in the area of decision making.
Don’t use a comma after a coordinating conjunction, after such as or like, after although, or before than.
Eowyn was a beautiful woman of Rohan and, a hard handed swordsman in battle.
Dwarves and elves have disagreed in the past such as, when both claimed the gold of Kazadhum.
Life in the middle earth was changing rapidly although, not all cared.
Frodo supposed it would be safer to travel with Sam Gamgee, than with the Gaffer.
They resigned themselves to an evening, like the evening before.
If parentheses are situated within a sentence, punctuation comes after not before.
There are many difficult questions, (and a few easy ones) on any comprehensive examination.
The orange juice was splendid, (as it so often is) but the milk had gone sour.
Take your seats, (if you please), and we will commence with the examination.
Sentences in Green are incorrect.
Worksheet on comma don’ts