Your brother or sister can never become your brother-in-law or sister-in-law. The people they marry are your brother-in-law or sister-in-law.
Oh, yes, in a riddle, if your brother marries your sister, then your brother and sister are also your brother-in-law and your sister-in-law. But that kind of marriage is forbidden everywhere and by all modern religions, so it is a pretty poor riddle.
Yes. But will it be legal? Is she still married to your brother? Is she married to anyone else? Are you married to anyone else? If neither you and the woman in question are married, then you are unmarried adults acting independently. The law should not stand in the way of your desire to wed. But the other questions, like how your brother and your family feel about the marriage proposition are another matter. In questions of this nature, the kind where "can I" is asked and a situation given, the answer is almost always "yes". But will it be legal? Ethical? Cause injury to family and other loved ones? Be a bad idea? You get the picture.
Inbreed!
In Brother Jonathan's Lament for sister Caroline, Brother Jonathan was metaphorically North Carolina and Sister Caroline was South Carolina.
He doesn't have sister he has a brother
Clara does not have a sister. She has a younger brother named Fritz
what?
Singer Avril Lavigne has a brother and a sister. Her brother Matthew is older than her and her sister Michelle is younger than her.
Your brother's wife becomes your sister-in-law.
Yes.
How a City do become a sister city is be it's brother.
only if your sister is a 100% Tom boy or had a sexualtransplant
no
Yes
Your brother's wife is your sister-in-law. Your spouse's sister is also called your sister-in-law. Your sibling's husband is your brother-in-law; your spouse's brother is also called your brother-in-law.
Yes; if your sister-in-law is the sister of your spouse, when you divorce your spouse she becomes your ex-sister-in-law. Unless you marry her. Then she becomes your wife. On the other hand, if your sister-in-law is the wife of your brother, her status has nothing to do with your marital status, but she would become your ex-sister-in-law if she and your brother divorced.
a cow
he did have brother and sister he had two sister and he had 1 brother
Niece is to nephew as sister is to brother.
She has 1 sister, a step-sister, a step-brother, a half-sister and a half-brother