You write it once; then step back and critically disapprove of what is written, so re-write it (as often as you like until it states what you wish it to be).
what's correct in terms of spelling or punctuation is driven in part by common usage. Already I see in written reports and other official documentation, modal verb phrases (could have, would have, etc) expressed with "have" replaced by "of", use of apostrophes to denote plurals, and replacement of the verb "to say" by the compound verb "to be like".
My pet hate Mushroom.
Basic, standard English yet it’s such a common error.
I don’t get it, there’s simply no excuse, you ought to know that by the second year of secondary school at the very latest.
I often wonder where their English teachers were when it came to marking?
I put it down to the fact that children aged 7-11 read so little these days, combined with teacher apathy/inadequacy.
Mark Twain was the first to submit a typewritten script
AND 1870s, he would refuse to punctuate - but leave it to the house style of the editor
and list the punctuation marks at the end with the instruction:
sprinkle these to taste !
Jane Austen's original punctuation and spelling was pretty far out too