Grammar Focus: Countable and Uncountable Nouns

• Countable nouns can be counted (one apple, two apples), have singular and plural forms, take a/an in the singular, and use many / few / a few: website, article, sources, friends.
• Uncountable nouns cannot be counted, usually have one form, cannot take a/an, and use much / little / a little / some / any: news, information, attention, evidence, time, effort.