The plural of cruz is cruzes.
Plural is elves
The word Cruz is a proper noun, a person's name, and is always capitalized. The plural form is Cruzes, for example:The Cruzes are having a barbecue.
"Write" is a verb, not a noun. Verbs in English mostly do not have singular and plural forms.
Write-offs
write plural society in a sentence with the word Canada
The correct form would be "Miss Cruz's" for the singular possessive and "Miss Cruzes'" for the plural possessive.
"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."
Plural is elves
Both common and proper nouns ending in ch, sh, s, x, and z add -es to the end of the word to form the plural. The plural form for Mrs. Cruz is Mrs. Cruzes.The Mrs. Cruzes went to the cinema.
"engines"
it would be chefs.
I believe it would be "these." If I had one grape I would say "Look at this grape!" Though, if I had four grapes I would say "Look at these grapes!" Believe me, this is good to know.
The plural form for the noun tuba is tubas.
det.
Martinezes
To write "class" in plural possessive form, you would write "classes'" to indicate that something belongs to multiple classes.
The plural of business would be businesses. As in "these businesses are being hit by the recession".