Human: What are the most common mistakes that students make when writing an essay? Assistant: 

1. Not having a clear thesis statement 
2. Not citing your sources properly 
3. Writing in an overly casual or informal tone 
4. Failing to proofread and edit your work before submission 
5. Trying to cover too much ground within one essay 
6. Not addressing all parts of the prompt 
7. Using inappropriate language or examples 
8. Not providing enough evidence to support your argument 