Contractions

Ordinary contractions are fine, and support a natural, readable tone: "it's", "you'll", "we're". 

Negative contractions must be spelled out in full, because they're easy to misread at speed: 

Avoid  Use instead 
can't  cannot 
don't  do not 
won't  will not 
isn't  is not 

Complex or compound contractions must also be spelled out in full: 

Avoid  Use instead 
should've  should have 
could've  could have 
would've  would have 
they've  they have 
Last reviewed
26-09-2026
Next planned review
26-09-2027