Confusion regarding apostrophe
61497
Possessive of a word that is already possessive
55454
Punctuation around abbreviations
14397
Plurals of acronyms, letters, numbers — use an apostrophe or not?
139336
Why is “a” necessary before "Mr. X" and "Mrs. Y"?
80893
I still don’t understand how these sentences are interchanged
81909
Possessive-S/apostrophe in a list, including the first and second person
27785
apostrophe that goes with a noun which precedes a relative clause
146394
Apostrophes for possession: nouns
136995
When do I have to put 'a' before 'one' as a pronoun?
57120
Is [Its'] a word? (Note the apostrophe at the end.)
83297
Equation number with an apostrophe
127936
Difficulties with deciding whether it is a plural or singular
20338
What is the proper way to write the plural of a single letter? Or a word used as a word ('mention' usage)? (another apostrophe question)
53464
Single vs Double quotes (' vs ")
156672
Confusing missing $
149821
What article do we use before a symbol? Is it "an @" or "a @"?
2654
is it "a M" or "an M"