cupfuls
The plural of "cupful" is cupfuls.
Most English nouns form the plural by adding -s, and cupful follows this rule.
Meaning: the amount a cup holds (noun)
How does it change in a sentence?
Use a plural verb with cupfuls: the cupfuls are. The possessive plural adds only an apostrophe: cupfuls'.
How do you pronounce it?
cupful is pronounced /ˈkʌp̪fl̩/. The plural ending sounds like /z/.
What mistakes should you avoid?
cupsful is an older plural. cupfuls is the usual form today.
Did you know?
- Young children learning English often say mouses and foots. They are applying the -s rule to every noun, which shows they have learned the rule itself.
Examples in context
- Add two cupfuls of flour.Singular: Add one cupful of flour.
- Three cupfuls of water is enough.Singular: One cupful of water is enough.