I try to write grammatically correct sentences, properly spelled words, the first time around. Being a non-native speaker of English makes me notice these things all the more, pay attention at all times. Sure enough, I'll backspace a lot when I'm typing quickly to get rid of accidental typos. And I'll stop to re-read the last bit or two I've just written when I get blocked. Usually, though, I try not to stop until I'm done for the day.
I do take breaks of different variety, though. The first time it happened, I didn't really pay attention to it, but as the situation repeated itself with the novel I'm currently writing, I've started to notice a pattern. I'll take two month long breaks from novel-length works. One about halfway through it, at approximately 50k, and another just before the climax, around 100k. It isn't intentional, just... happens.
