How do you say for my brother and sister in Swahili?

You can say "kwa ndugu zangu" for "for my brother and sister" in Swahili.

Here's a breakdown:

* kwa: for

* ndugu: brother, sister, or sibling (pluralized as "ndugu" for both)

* zangu: my (plural possessive, indicating more than one sibling)

Let me know if you have any other Swahili questions!