The plural of material is materials.
No, the word "material" is singular. The plural form is "materials."
The word material is a noun. The plural noun is materials.
The plural form of "Chinese" is "Chinese." The word stays the same in both the singular and plural forms.
The word 'dates' is already plural. The singular form is just 'date'.
The singular of "measles" is "measles." The word does not change whether it is singular or plural.
Roofs is already a plural noun. The singular form is roof.
Baggage is already plural.
The plural form for the noun 'material' is materials.
The word "executives" is already plural.
the word dozen is already plural.
The plural of diary is diaries.
Nevi is the already plural word of nevus.
*legislation the word "legislation" is already plural.
The word 'attorneys' is already plural !
bosses is already plural from the word "boss"
physics is already in plural form.
Rushes is already a plural. The singular is rush.
The word doctorates already is plural. The singular form is doctorate.