The plural is students and the plural possessive is students' (add apostrophe only).
The phrase meaning "top-level studier" would be spelt A student.
The plural possessive form of student is students'.
The plural possessive is others'. You simply add an apostrophe to a plural ending in 's' to make it possessive.
The possessive form of the plural noun dependents is dependents'.
The plural possessive for the noun dish is dishes'.
The plural form of the noun student is students.The plural possessive form is students'.Example: I have to prepare a speech for the students' day assembly.
The plural is composers and the plural possessive form is composers' (just an apostrophe added).
The form student's is the singular possessiveform.example: One student's locker was broken into.The plural form of the noun student is students.The plural possessive form is students'.example: Two students' lockers were broken into.
soldiers - plural, soldier's - possessive
The possessive form of "libraries" is "libraries'".
The plural of senior is seniors. The plural possessive is seniors' (referring to more than one senior).
The plural possessive form for comity (one m) is comities'. If you meant the noun committee, the plural possessive form is committees'. If you meant the noun community, the plural possessive form is communities'.
The plural form of the noun address is addresses.The plural possessive form is addresses'.Example:The student addresses' schedule is posted on-line.