Em inglês, o apóstrofo (apostrophe) usa-se:
 
 
  1   em formas possessivas:
 
 
This is John's house.
These are the boys' bicycles.

 
Para mais exemplos, veja possessive case
 
 
 
  2   em formas contraídas:
 
 
  • verbos:
     
    I'll see you tomorrow.
    He doesn't like coffee.

     
    Para mais exemplos, veja verb contractions
     
     
  • datas:
     
    John was born in '97.
    They met in the summer of '92.

     
     
  • horas:
     
    See you at 7 o'clock.
     
     
  • dialectos   (por ex. h mudo):
     
    When 'e arrived 'ome, 'is wife kissed 'im.
 
 
  3   em certos plurais:
 
 
  • letras:
     
    How many c's and m's are there in accommodation?
     
     
  • números:
     
    Life was hard in the 1920's.
    The way you write, your 7's look like 1's.

     
     
  • palavras:
     
    You have seven and's in this sentence. There are too many!
     
     
  • abreviaturas:
     
    John met two VIP's yesterday. (1)
    How many MP's do you know personally?
    (2)
     
    (1) VIP = very important person
    (2) MP = Member of Parliament