cupfulls
Cupful is singular; cupfuls is the plural.
Cupfuls
cupsful
cupfuls
The plural form of cupful is cupfuls.
Mi(s) (Plural with 's')
Cupful's
An old way of saying a cow or ox in plural form
Singular: goose Plural: geese
In the word cupful, cup is the root, and ful is the suffix.
no it is not it is just another way of saying it in present tense
Both "cupful" and the plural "cupfuls" use only one L, a common short form used in measurements (teaspoonful, etc.).