Formal vs Informal Tone
Avoid slang and contractions in formal writing.
Examples
- I would be grateful vs Thanks a lot
Key rules
- Formal writing avoids contractions and slang and uses complete sentences
- Informal writing can use contractions, short sentences and friendly words
- Choose the tone by checking your audience and purpose
Common mistakes
- I'd be grateful → I would be grateful (formal)
- Thanks a lot → Thank you very much (formal)
Use cases
- Business letters
- School essays
- Messages to colleagues you do not know well
💡 Tip: Read your text aloud: if it sounds like a conversation with a friend, it may be too informal for a report.