Partitive Structures: A Piece of, A Bit of, A Loaf of...
Level A2 · Nouns & Quantity
Uncountable nouns (advice, bread, news, furniture) can't take a or a plural -s directly, but a partitive structure — a/an + measuring word + of + uncountable noun — lets you count or refer to a single unit of them. You can't say an advice or an information, but you can say a piece of advice or a piece of information; you can't say a bread, but you can say a loaf of bread or a slice of bread.
How partitive structures are built:
- a piece of is the most general, all-purpose partitive, working with many abstract or miscellaneous uncountable nouns: a piece of advice, a piece of news, a piece of information, a piece of furniture, a piece of luck.
- Many uncountable nouns have their own specific, more natural partitive word instead of piece: a loaf/slice of bread, a bar of soap/chocolate, a bolt of lightning, a blade of grass, a drop of water, a grain of rice/sand.
- The plural is formed on the partitive word, never on the uncountable noun itself: two pieces of advice (not two advices), three loaves of bread (not three breads), several bits of information (not several informations).
- bit of is an informal, more casual alternative to piece of, common in speech: a bit of luck, a bit of advice, a bit of good news.
The most common mistake is pluralizing the uncountable noun directly instead of the partitive word — two advices, three informations, several furnitures are all wrong; the uncountable noun itself never takes -s: two pieces of advice, three pieces of information, several pieces of furniture. A second mistake is using a/an directly before an uncountable noun to mean 'one unit of it' — an advice, a bread are both wrong; add the partitive structure: a piece of advice, a loaf of bread.
Look for an uncountable noun (advice, news, information, furniture, bread, luggage) that you want to count or refer to as a single item — insert a/an + [piece/bit/loaf/slice/bar/etc.] + of before it, and pluralize only that measuring word, never the uncountable noun itself.