The relationship of the sibling of your sister-in-law or brother-in-law to you does not have a name in English. You could call them your brother- or sister-in-law if you want, or you can call them the brother or sister of your brother- or sister-in-law.
Your brothers' in-laws are an attachment to your family by marriage, so they would be classified as in-laws by yousome people call them familys in lawsome call the second cousins
If your brother-in-law's daughter is by your sister, she is your niece. If your brother-in-law's daughter is by someone else, she is genealogically not in your family tree.
No, he is simply your sister in law's husband. He has no relationship with you. The reason she is called your sister-in-law and is because it is expected for a husband and wife to have children, and those children will join your family tree as they have some ancestors who are also your ancestors. Your sister-in-law's husband will never have ancestors that are also your ancestors.
There is no genealogical relationship. He is just your son-in-law's brother.
AnswerThere is no such relationship as an Aunt-in-law. Your uncle, the brother of one of your parents, is married to your Aunt. Her brother is not related to you.If your spouse has an Aunt, you may consider her your aunt if you want, but no one talks about an Aunt-in-law. In any case, her brother is your spouse's uncle or father. AnswerYour 'Aunt-in-law' is your Uncle's wife. The generic term 'Aunt' can be referred to your Father's / Mother's sister. Normally, we don't call our Uncle's wife as 'Aunt-in-law', we just call her by 'Aunt' as a form of respect and because we really treat that 'Aunt-in-law' as part of our family. Of course you can take your aunt-in-law's brother as a distant relative.
Your sister in law is your husband's sister or your brother's wife.
Yes
if your sims spouse has a brother or sister then they will be your sims brother or sister in law
Your sisters husband would be your Brother-In-Law, depending on whether you are a male or female, you would be his brother-in-law or sister-in-law. What he calls you well, that depends on your name and how much he likes you. I have a brother-in-law named Jerry, what I call him I can't say on here because well, this is a family sight. :)
If you they are also the son of your brother, he would be your nephew. Otherwise, there is no direct relationship, though referring to him as nephew (and you as aunt/uncle) would be the standard in most families.
Since it would be your sister who had the child with her husband (your brother-in-law) then that would make their child your niece or nephew.
Your wife's sister's husband is your wife's brother-in-law, but is not related to you.
your sister and brother in-laws
There would be no relationship as you do not share a common ancestor. If your brother-in-law is married to your sister, then her daughter is your niece, her husband would be referred to as your niece's husband.
Your brothers' in-laws are an attachment to your family by marriage, so they would be classified as in-laws by yousome people call them familys in lawsome call the second cousins
Your ex-sister-in-law is either the ex-wife of your brother or the sister of your ex-spouse. In either case, the English language has not yet developed a term describing her relationship to you.
your aunt.(: