Grammar / B2 Grammar lessons and exercises / Compound nouns and possessive forms

We normally use ‘s with people or animals. However, we can also use it with time expressions, shops, places (cities, countries, etc.) and organisations.
🔍 Note that we can use both the possessive ‘s or of when talking about places or organisations:
Look at the table below to see how to use the possessive case.

🔍 Note that we use of + possessive case or possessive pronoun if there is a determiner (a, some, this, etc.) before the nouns.
We normally use of instead of ‘s when talking about inanimate things, parts of things, or abstract nouns.
We also use of instead of ‘s with long noun phrases.
In many cases, we use noun + noun, instead of possessive ‘s or of. When we use noun + noun, the first noun is acting as a modifier of the second noun, like an adjective, and is normally singular (tourist destination, stomach bug, school bus, etc.). Sometimes more than one form is possible:
However, we often prefer one form over the other because it’s more common: bus stop, car key, toothpaste, car park, ice cream, haircut, etc.
One word, two separate words or two words linked with a hyphen?
Compound nouns are often two separate words, e.g. school bus, car park, etc., but very common compound nouns are sometimes used as one word, e.g. bathroom, haircut, etc., and sometimes linked with a hyphen, e.g. letter-box. But on many occasions, you can see the same compound noun written in different ways.
We can use a compound noun to refer to a container, which is usually empty: a tea cup, a wine glass, a beer glass, a matchbox, etc.
❗ But we use noun + of + noun to refer to a container together with its contents: a cup of tea, a glass of wine, a glass of beer, a box of matches, etc.