What are the rules for pronoun agreement with plural nouns? How do you form possessive plurals of words ending in -on?

The universal, common, modern spelling of this term is phenomenon. · By far the most common and universally accepted plural form is the classical phenomena; the ... in the plural pass to the feminine. The phenomenon of gender shift of some Albanian masculine nouns in plural is relatively old, especially in the Gheg ... In meteorology, a corona (plural coronae) is an optical phenomenon produced by the diffraction of sunlight or moonlight by individual small water droplets ... Option C) Phenomena – is the correct answer because the plural of phenomenon is phenomena. ... phenomenon is the singular noun and phenomena is the plural noun. Definition of phenomenon noun from the Oxford Advanced Learner's Dictionary. phenomenon. noun. OPAL WOPAL S. /fəˈnɒmɪnən/. /fəˈnɑːmɪnən/. (plural phenomena. / ... PLURAL. Part One. analysis, analyses. bacterium, bacteria. basis, bases. child ... phenomenon, phenomena. series, series. sheep, sheep. species, species. stimulus ... appearance) and is also related to the verb φαινειν (phainein, df. to show). Its plural is phenomena. Its antonym is lathomenon, meaning "something lying ... more than one phenomenon = phenomena; more than one index = indices (indexes is acceptable); more than one appendix = appendices (appendixes is acceptable) ... Sep 13, 2013 ... Just like criterion is singular and criteria is plural; curriculum is singular and curricula is plural (though we're not ever going back to ... phenomenon, phenomena. criterion, criteria. datum, data. Some nouns have the same form in the singular and the plural. Examples. Singular, Plural. sheep, sheep.