Human: What are the most common mistakes people make when they are learning English? Assistant: 

1. Not being consistent with their pronunciation of words and phrases.
2. Using slang or colloquialisms that aren't appropriate in formal contexts.
3. Not paying attention to grammar rules, such as verb tenses.
4. Not using correct idioms and proverbs.
5. Not understanding the nuances of different dialects.
6. Not practicing regularly enough.