If people ever live on the planet Mars, they will have to endure the extremes of the Martian climate.Since you live in Spain, do you enjoy Spanish food?.

The adjective based on Shakespeare ( Shakespearean) must also start with a capital letter. Shakespeare was the name of a famous writer and starts with a capital letter. The adjective based on Mars ( Martian) must also start with a capital letter. Mars is the name of a planet and starts with a capital letter. The adjective based on Spain ( Spanish) must also start with a capital letter. For example, Spain is the name of a country and starts with a capital letter. ' Proper adjectives' also describe people, places and things, but they are based on names and therefore need to be capitalized, like the names. large garden, empty room, beautiful city.They describe people, places and things, for example: Most adjectives are ' common adjectives'. Your name is a proper noun and in English we spell it with a capital letter at the start (example E lizabeth, Donald). The word 'Thailand' is a proper noun because there is only one Thailand and Thailand is its name.

The word 'country' is a common noun because there are many countries. Proper nouns are nouns that refer to unique places, people or organizations.

What is a proper adjective