Of grammar rules but the basic ones refer to sentence structure and parts of speech, which are noun, pronoun, verb, adjective, adverb, preposition and conjunction. Let’s look at the way sentences are put together and the words that form them.

Basic English Grammar Rules
Some of the most basic and important English grammar rules relate directly to sentence structure. Some of these rules specify that:
A singular subject needs a singular predicate.A sentence needs to express a complete thought.
Another term for a sentence is an independent clause.
Clauses, like any sentence, have a subject and predicate too. If a group of words does not have a subject and predicate, it is a phrase.If they can stand alone and make a complete thought, then they are independent and called sentences.If they do not express a complete thought, they are called "dependent clauses." An example of a dependent clause, which is not a sentence, is “when i finish my work”.
Answer:
There are images of soldiers blown up a tree with their lower half missing. Or soldiers who are decapitated by artillery fire as they rush the enemy trenches. They keep running for a few seconds without a head, blood spurting from their open neck wounds, before they fall over, dead.
Answer:
1. Despite of their best efforts, they could not save her.
2. Although it was late, we went for a walk.
3. Despite studying hard, I could not score good marks.
4. Despite my objection, they went ahead with the plan.
5. Although my sister is younger than me, I have great respect for her.
6. Although they hadn’t invited me, I went to their party.
7. Although I invited him he didn't come.
8. Despite being rich and powerful, she leads a miserable life.
9. Although the traffic was bad, I reached my work on time.
Tell about how abuse affects the world today
Answer:
They thought nature was out to get them, thought everything was altered by God and thanked him for all good and bad, bias toward native Americans at first but not at the end.