2.Each pronoun agrees with their antecedent.
3.Verbs has to agree with their subject.
4.Don't use no double negatives.
5.And don't use conjunctions to start sentences.
6.Don't use a run-on sentence you got to punctuate it.
7.About sentence fragments.
8.In letters themes reports articles and stuff like that we use commas to
keep strings apart.
9.Don't use, commas, which aren't necessary.
10.Its important to use apostrophe's right.
11.Don't abbrev.
12.Check to see if you any words out.
13.In my opinion I think that the author when he is writing should not get into the habit of making use of too many unnecessary words which he does not really need i mean whats the use of writing too many unnecessary words which anyways nobody's going to read.
14.Then, of course, there's that old one: Never use a preposition to end a sentence with.
15.The sentences grammatically correct should be.
16.In my reckoning, the author ought to abstain from, circumvent, refrain from and avert using redundant words. That is, saying the same thing over and over again is to be avoided.
17.I repeat, redundancy should be avoided at all costs
18.Last but not least, avoid cliches like the plague.