The plural form of nephew is nephews.
The plural form of the noun porch is porches.The plural possessive form is porches'.
Plural is elves
just add S to race for the plural form "races" is the plural for race
The plural form is either concertos or concerti, both are correct.
allergies
The plural of allergy is allergies
"Write" is a verb and therefore is the same applied to singular and plural, for example:"I write the music." and "They write the music."
Write-offs is the plural of write-off
The plural form of nephew is nephews.
The plural form for the noun rivalry is rivalries.
The plural form of the noun porch is porches.The plural possessive form is porches'.
"Batteries" is already plural form. The singular form is "battery".
The plural form of "brush" is "brushes."
Plural is elves
The plural form for the noun tuba is tubas.
just add S to race for the plural form "races" is the plural for race