American English vs British English III

Grammar  and spelling differences between British and American English

Prepositions 
There are also a few differences in preposition use including the following:
 American English - on the weekend
 British English - at the weekend

American English - on a team
British English - in a team

American English - please write me soon
British English - please write to me soon  
Spelling differences between British and American English:
1. Some words that end in ‘-tre’ in British English end in ‘-ter’ in American English.
US theater, center
Brit. theatre, centre
2. Some words that end in ‘-our’ in British English end in ‘-or’ in American English.
US color, labor
Brit. colour, labour
3. Some words are shorter in American English than in British English.
US catalog, program
Brit. catalogue, programme
4. Some words that end in '-ize' in American English end in '-ise' in British English.
US recognize, patronizeBrit. recognise, patronise

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