British and American English share almost all of their grammar, so speakers understand each other easily. But there are some differences worth knowing, especially if you are preparing for an exam or writing for a particular audience. The most important rule is to be consistent: choose one variety and stick to it.
1. Present Perfect vs Past Simple
British English usually uses the present perfect for recent actions; American English often uses the past simple.
- UK: I’ve just eaten. Have you finished yet?
- US: I just ate. Did you finish yet?
2. Collective Nouns
- UK: The team are playing well. (singular is also used)
- US: The team is playing well.
3. Have and Have Got
- UK: Have you got a pen?
- US: Do you have a pen?
American English uses gotten as a past participle (He has gotten better); British English uses got.
4. Past Tense Forms
British English more often uses irregular forms such as learnt, dreamt, spelt, burnt. American English prefers learned, dreamed, spelled, burned. Both forms are understood everywhere.
5. Prepositions
| British | American |
|---|---|
| at the weekend | on the weekend |
| in a team | on a team |
| Monday to Friday | Monday through Friday |
| different from / to | different from / than |
| write to me | write me (informal) |
6. Shall and Should
British English still uses shall for offers and suggestions (Shall I open the window?). American English usually says Should I…? or Do you want me to…?
7. Spelling and Punctuation
- -our / -or: colour / color
- -ise / -ize: organise / organize (-ize is also used in British English)
- -re / -er: centre / center
- Quotation marks: British often uses single quotes (‘…’), American double quotes (“…”).
- Abbreviations: Mr and Dr (UK) / Mr. and Dr. (US).
Which Should You Use?
Both are correct. IELTS, TOEFL and Cambridge exams accept either, as long as you are consistent. Follow the style your school, exam board or employer uses.
See also: comparing English grammar to other languages.
