UNHELPFUL HOMOPHONES
A homophone is a word which is pronounced in the same way as another word but which is (usually) spelled differently and, of course, has a different meaning. So main/mane; here/hear; great/grate; baron/barren.
These kinds of mistakes are almost inevitable, certainly in the white heat of a first draft when there is a rush to get something down on paper/screen and there is a blip between brain and fingers. Usually a proper check through at second draft/editing will catch the problems - though, of course, that's dependent on knowing the difference between the words, so there is no substitute for having a good dictionary and a better vocabulary.
There are some words though which seem to cause more problems that others - possessives** and their homophones.
Possessives = words indicating possession so: my, his, her, our ie my = something possessed by/belonging to/associated with me. No problems with these usually. But their, your, its and whose all seem problematic and become confused with the contractions they're, you're, it's and who's - where the apostrophe is taking the place of a missing letter (see
APOSTROPHE above).
Their = something belonging to them ie
'their football boots'
They're = a contraction of 'they are' ie '
they're on the losing team again'
Your = something belonging to you ie '
your common sense'
You're = a contraction of 'You are' ie '
you're so clever'
Its = something belonging to it ie
'its bleak wind-swept outlook'
It's = a contraction of 'It is' ie
'it's raining again'
Whose = something belonging to either an unnamed/unknown individual ie
'whose clothes are those?' or someone referred to previously ie '
she is a woman whose dress sense is impeccable'
Who's = a contraction of 'Who is' ie
'who's that at the door?'
If there is confusion as to whether to use, say, your or you're, think about what you are saying - if need be re-word it. If it is 'here is [your/you're] coat', re-phrased it is 'here is the coat belonging to you' - ie possessive, so it must be 'your'. If it is 'why can't you hurry? [Your/you're] always last', re-phrased/expanded it would be 'You are always last' - ie a contraction of 'You are' is needed, becoming 'You're'.
J
** I've always thought of them as possessive pronouns, but having checked I see they are possessive 'determiners', a determiner being 'a modifying word that determines the kind of reference a noun or noun group has' ... so that's made everything clear then...