I'm guessing Culnen is a family name, so I'll go with Culnens
Plural is elves
The plural of cruz is cruzes.
"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
"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
The plural of cruz is cruzes.
"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.
To write "class" in plural possessive form, you would write "classes'" to indicate that something belongs to multiple classes.
det.
Martinezes
The plural of business would be businesses. As in "these businesses are being hit by the recession".
If you are using sweet as in sugary sweet, the F Pl would be sucrées.