Grammatically Correct: The writer's essential guide to punctuation ...

PROBLEM WORDS
HEBREW WORDS ADD IM (FOR MASCULINE WORDS)
OR OTH (FOR FEMININE WORDS)
In a number of cases, it is acceptable to adds instead.
kibbutz kibbutzim
Ashkenazi Ashkenazim
Sephardi Sephardim
cherub cherubim or cherubs
seraph seraphim or seraphs
mitzvah mitzvoth or mitzvahs
matzo matzoth or matzos
Use cherubs to refer to appealing children (both their daughters
were perfect cherubs), and cherubim to refer to actual angels.
SOME ENGLISH WORDS TAKE
UNPREDICTABLE PLURAL FORMS
one mouse two mice
one die two dice
one foot two feet
one ox two oxen
one goose two geese
one man two men
one child two children
SOME WORDS ARE THE SAME IN BOTH
SINGULAR AND PLURAL FORM
one moose
one deer
one aircraft
one series
one sweepstakes
two moose
two deer
two aircraft
two series
two sweepstakes
Native speakers easily absorb these plurals along with the more
predictable ones. For those learning English as a second language,
there is little to do but roll the eyes, tear at the hair and grimly
memorize each one.
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