Sure! Some common writing mistakes include

1. Overusing expletives at the beginning of sentences
2. Overusing noun forms of verbs
3. Using unnecessary infinitive phrases
4. Using circumlocutions in favor of direct expressions
5. Forgetting the purpose, audience and context while writing
6. Poor planning before start writing
7. Moving out of the topic, digression
8. Using complex sentences
9. Not having a strong thesis statement
10. Using too many quotes in an essay
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