The word doctor is a common singular noun. It requires no apostrophe.
The doctor saw patients by appointment only.
If the word doctor has a possession or belonging, it needs an apostrophe.
I had a doctor's appointment.
Note: If you happened to see many doctors at different appointments, you would write:
My doctors' appointments went well.
You would say "Dear Doctors" you wouldn't put the apostrophe.
Aren't- The apostrophe replaces the 'o' in this circumstance.
Yes. Use an apostrophe S if you are indicating possession.
The contraction or "you would" is you'd. It is also the contraction for the phrase "you had." In either case, the apostrophe goes where the letters were removed.
With the word 'men' you would put the apostrophe between 'men' and 's'.
If you wanted to say "nieces" as a plural, such as "I have two nieces", then it wouldn't need an apostrophe. If you wanted to say something like "My niece's teddybear", showing singular possession, then you would need an apostrophe. The word nieces is a plural noun. If you want to use it as a plural possessive noun then put an apostrophe at the end - nieces' My nieces' husbands are both doctors.
The hammer of neither doesn't require an apostrophe.
there is no apostrophe in the word cyclist.
yes
Well if her name is "Agne" then the apostrophe would go here "Agne's ". However, if her name is "Agnes" then the apostrophe would go here "Agnes' "
bells'
You put the apostrophe in children's between the n and the s. Children is plural for child. Since children is plural adding the apostrophe s makes it possessive.