Letter (formal / informal)
Used for personal, professional, complaint, persuasive contexts.
Structure
Address & date → salutation (Dear...) → opening purpose → body (paragraphed) → closing → sign-off (Yours sincerely / Yours faithfully) Register
Formal: standard English, no contractions, complex syntax · Informal: contractions, colloquialisms, direct address Adjust tone precisely to the stated audience and purpose — examiners reward consistent register.