#16 “Brother-in-laws”
Putting the letter ‘s’ when you are tending to the kin of your companion is vital. You don’t say ‘Brothers-in-law since this implies you just have one sibling, and you’re alluding to numerous laws, which doesn’t add well.
It ought to be ‘brothers-in-law’ or ‘sisters-in-law’ since they are multiple. Example:
“Sarah and Kate are my sisters-in-law.”
