A Simple Sentence, is simply a sentence that consists of only one clause, with only a single subject and predicate.
Example: (in picture below)
~Hope this helped :)
This seems like more of a personal thing, i can give you some guidance: let's say you believe strongly in a specific political or philosophical view point. when someone breaks this viewpoint how does that make you feel? hope that helps
Its important if not can't hopfully one of them is right
You use were was doesn't sound right