I know the best way is to hire an editor. And I know you become aware of them over time.
I just want to know if there are any tips or techniques to spot/correct them?
For example these are my common errors/typos:
Over it/over to it
When it happened/when it had happened
He was/was he
Thousands of years/ thousands years
Right now, I can only think of searching each individual error/typo with CTRL + F and correct it.
Does anyone has other suggestions?