One eight, two eights.
Trays is the plural of tray.
Two cant be made plural. Two is an adjective describing something like "two cats". You could say "Sets of two".
loaves is a plural noun in the rule 8
The plural form of two-year-old is two-year-olds.
The plural of two is twos. e.g. Three twos are six.
eights, 8s
8s or eights.
Isthmi is plural. There are actually two plural forms. I will list them from singular to plural. Isthmus - Singular Isthmi - Plural Isthmuses - Plural
two
The plural of "8" is "8s." In English, the general rule for forming the plural of numbers is to simply add an "s" without an apostrophe. This applies to most numbers, including "8."
It is plural: one innings, two innings.
Two. Quizzes is the plural form of quiz.