How should 'month' be expressed in proper plural form?

The proper plural form of the word 'month' is 'months.' This construction follows the standard rule of English where most nouns form their plural by adding “-s” or “-es.” In this case, 'month' simply takes the “-s” at the end to become 'months,' indicating more than one month.

The other options do not correctly represent the plural form. For example, 'monthes' is a common misspelling and does not adhere to English language rules. 'Moons' refers to celestial bodies orbiting planets and is not relevant in this context. Lastly, 'month’s' suggests a possessive form, indicating ownership or association, which is not applicable here when simply indicating multiple units of time. Thus, 'months' is the only appropriate choice for the plural form of 'month.'