I have always thought plurals in English is always word + s (except for irregular plurals). In my language we use apostrophes when a word ends in a vowel. I have been correcting my friends who write
line's instead of
About a week ago I went to the UK. I noticed advertising boards with phrases that do use apostrophes in plurals. No, this was not like
The cat's leaping as in
The cat is leaping but something along the lines of
We sell car's.
I am very confused now, can anyone explain this to me please?