I hate commas in the wrong places.
The rule is: the word 'it's' (with apostrophe) stands for 'it is' or 'it has'. If the word does not stand for 'it is' or 'it has' then what you require is 'its'. This is extremely easy to grasp. Getting your itses mixed up is the greatest solecism in the world of punctuation. No matter that you have a PhD and have read all of Henry James twice. If you still persist in writing, 'Good food at it's best', you deserve to be struck by lightning, hacked up on the spot and buried in an unmarked grave.
If a translation doesn't have obvious writing problems, it may seem quite all right at first glance. We readers, after all, quickly adapt to the style of a translator, stop noticing it, and get caught up in the story.
The only man, woman, or child who wrote a simple declarative sentence with seven grammatical errors "is dead."
But no, I don't generally have trouble with spelling mistakes.
Ten censure wrong for one who writes amiss.
Cooper's art has some defects. In one place in 'Deerslayer,' and in the restricted space of two-thirds of a page, Cooper has scored 114 offences against literary art out of a possible 115. It breaks the record.
If you're not in the hands of an expert editor, you really can go wrong in a lot of different ways.
When you reach the editing stage, it is often the case that you can get too involved with the story to detect errors. You can see words in your head that aren't actually there on the page, sentences blur together and errors escape you, and you follow plot threads and see only the images in your skull.
Writers sometimes ruin a book by adding a lighthearted mood at the wrong moment.