The singular possessive of "sister-in-law" is "sister-in-law's."
What is the answer
There are two ways you can have a sister-in-law. In one case, her sister is also your sister-in-law and in the other she is not. Your sister-in-law can be the sister of your spouse. Then your sister-in-law's sister is either your wife or is also your sister-in-law. Your sister-in-law can also be the wife of your brother. In that case, your sister-in-law's sister is not related to you.
Yes, the sister of your spouse (wife or husband) is your sister-in-law. In addition, the wife of your brother is also your sister-in-law.
The compound word for sister-in-law is "sister-in-law".
If your sister in law is your wife's sister then she would be nothing to your sister. However if your sister in law is your brother's wife then she would also be your sister's sister in law.
you can get some by going to dawns sister every day when you have a national dex
The possessive form for her sister-in-law is her sister-in-law's.Example: She borrowed her sister-in-law's car.
August 4th is sister's day and September 4th is women's day but there is no girl's day that I know of. sorry
The possessive form of the noun sister-in-law is sister-in-law's.Example: I borrowed my sister-in-law's car.
The singular form of sister-in-law is sister-in-law.
If your future sister-in-law won't wear a bridesmaid dress then she doesn't need to be a bridesmaid. This YOUR special day. For one day, everyone caters to you and your husband.