You use it when your calling someone, or naming more than one thing. Bur\t, for example the name 'Mr.Byrnes'; when you are saying about their stuff, like " I gave Mr. Byrnes' book back" then you put a apostrophe in front of s. In this case you are not. Happy to help! :)
The apostrophe S ('s) is used to show a singular possessive as in the example above, and to show contractions of verbs containing is such as "he's" or "there's."
No, only use an apostrophe when using a contraction or a possessive
Same as any other use. Use an apostrophe S to indicate possession.
If the word ends in apostrophe s or ends in s apostrophe, then there is NO space before or after the apostrophe, but always a space before the next word.
An apostrophe is a punctuation mark. Use an apostrophe to show possessive before the letter S at the end of the word. An apostrophe looks like a single quote mark, but properly, like a single closing quote mark. Too many people simply add an apostrophe at the end of a word before the letter S, when they really intend to show the plural case, not the possessive case. It's not hard to learn how to use an apostrophe.
An 's preceded by an apostrophe ('s) indicates possession or contraction (e.g., John's book, it's raining). An s followed by an apostrophe (s') is used for plural possessives where the noun is already plural (e.g., the girls' toys).
If you are indicating possession (Achilles' heal) use an apostrophe at the end of the word. If you are simply stating his name, there is no apostrophe.
Personally, no. But it's not incorrect to put the apostrophe.
No. If the sheriff possesses something, it is the sheriff's with an apostrophe before the "s."
Yes, there can be either apostrophe s ('s) or just an apostrophe (') at the end of the word.
Before the 's'.
If it is required, the apostrophe would come after the Z but before the S. "This is Mr. Buzz's stinger!"
The apostrophe in the word "Texas" is placed before the "s" to indicate possession (e.g. Texas's economy).