Here are some rules for the use of Apostrophe 's' or possessive nouns.
Rule: Possessive case is used with the nouns of living things.
- This is Sachin’s bat.
- The car’s wheel is punctured (Wrong)
The wheel of the car is punctured (Correct)
Rule: Non-living things are used in possessive case when they are personified.
- Ramu is at deth’s door.
- This is earth’s surface.
Rule: Possessive case is used with nouns denoting space, time or weight.
- I want a day’s leave.
- Shila will be back in a month’s time.
Rule: If two or more noun jointly possess something then possessive sign is put on the latter only.
- Sachin and Saurav’s partnership was awesome.
- This is Rahul and Sonam’s shop.
Rule: If else is used after somebody, anybody, nobody etc then apostrophe is used with else.
- I obey your orders and nobody else’s.
- This watch is not mine, it is somebody else’s.
Rule: Apostrophe is not used with possessive pronouns like; his, hers, yours, mine, ours, its, theirs, etc
Rule: Apostrophe is not used with two consecutive nouns.
- Sonal’s car’s colour is very nice. (Wrong)
The colour of Sonal’s car is very nice. (Correct)