"Men's" is the plural possive, as in the men's toilet (belong to men (plural).
MOST nouns in English take apostrophe-s for singular possessive, s for plural, and s-apostrophe for plural possessive.
Fred is a waiter. (singular)
This is the waiter's jacket. (singular possessive)
Fred and Sam are waiters. (plural)
These are the waiters' jackets. (plural possessive)
Because the plural of "man" is "men" without an s, the plural takes apostrophe-s.
Fred is a man.
This is the man's jacket.
Fred and Sam are men.
These are the men's jackets.
men's because if the toilet is for men then it should be men's
It should be men's.
The men's uniform.
Yes because the toilet is the mens. So it would be men's toilet.
With the word 'men' you would put the apostrophe between 'men' and 's'.
It should be Rico's.
It should be: buildings'
There is no apostrophe in that sentence. It would be in: The scouts' tents.
It should be Mother's Day.
it's is a abbreviation of it is so it should have an apostrophe
no There should never be an apostrophe in "never".
"Companies" is the plural "company" and doesn't require an apostrophe unless you are using a plural possessive. With the plural possessive, the apostrophe should appear at the end of the word after the 's'.
There is no need for any