Mine vs. Mine's
'My' is the possessive adjective and 'mine' is the possessive pronoun, but what grammatical category does "mine's" fall under? Let's find out!
Is "Mine's" Correct?
If 'mine' is a possessive pronoun, you should know that possessive pronouns do not use apostrophes to form possessives.
Why This Mistake?
You might think since almost all the nouns in English, can be possessive with apostrophes, pronouns can too. But they cannot.
When Can 'Mine' Take 's?
However, if 's' is not for expressing possessiveness or belonging, but to show the abbreviated form of 'is' or 'has', then you can safely use 'mine's' without the fear of making a mistake.
Your hat is red.
Besides that, if 'mine' is a noun, it's obvious that it can take apostrophe 's' to show possession like every other noun in the English language.
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A Not So Common Mistake
You might hear a native speaker using "mine's" as the possessive of a possessive! But you should know that grammatically it is wrong.
I have the same jacket.
This is the correct use of possessive pronoun.
I have the same jacket. Mine's
This sentence is not a standard English sentence.
Parrots are so friendly.
In the first example, "mine" is the possessive form of 'I' and it replaces the possessive phrase 'my parrot'.
What's you parrot's name?
In the second example, "mine's" is the possessive form of the possessive! It replaces the phrase 'my parrot's name'.