The correct use of apostrophe is when there are any missing letters. Like when you are writing contraction such as don't which is do not and it's which is it is. You are required to write a apostrophe to indicate missing numbers such as when you are abbreviating a year. If you are using the possessive its, you do not use an apostrophe, but if you are writing a contraction then you write it this
. way, it's. Another correct use of the apostrophe is when you are using plurals of lowercase letters and single capitals. You use the apostrophe to indicate a plural word. You also use the apostrophe when you are using the plural of an uppercase letter which is just a single letter. You will use the letter than apostrophe s. You do not use apostrophes when you are using the plural uppercase acronyms. You will also use when there is a word that indicates possession. But, if the noun is singular such as the girl's dress.
