Plural/singular adjectives

Hi,

Those people are beautiful.

This is a beautiful flower.

Compare:

This flower has vivid reds and blues - However, reds and blues are nouns here, not adjectives.

Regards

Hi,

Of course, there are also

eg possessive adjectives - my car, our car

eg demonstrative adjectives - this car, these cars

Clive

Thanks, Clive and Regards, let me rephrase the question, are there specific rules of using singular/plural nouns as adjectives? Also, when an apostrophe can be omitted?

parent meeting

parents meeting

Anonymoususing singular/plural nouns as adjectives

The great majority of these are singular (car door(s), window cleaner(s), allergy shot(s), ...) - maybe 99.9% - but there are a few cases where the modifying noun is plural (sports equipment) that have to be learned as exceptions.

CJ

Thanks, CJ, it would be great to have a collection of such plural exceptions.

tights wearer

species behaviour

Also, apostrophe is used to show that something belongs to someone or something, or is connected with them.

All Saints' Day

All Souls' Day

However, apostrophe is omitted in some cases (British E

AnonymousIs there an alternative rule about the use of apostrophe in American English?

Not that I know of. I know there are differences in punctuation, but I don't know British punctuation well enough to give you an answer.

CJ