Formal:
* Nampenda sana: This translates to "I love him very much," which is a strong way to express missing someone.
* Namkumbuka sana: This means "I remember him very much," which implies missing him due to fond memories.
Informal:
* Ninamkosa sana: This literally translates to "I miss him very much."
* Namtamani sana: This means "I desire him very much," and can imply a more romantic longing.
Other options:
* Nahisi pengo lake: This translates to "I feel his absence," and can be used when missing someone's presence or role in your life.
* Ninatamani angekuwa hapa: This means "I wish he were here," and expresses a strong desire to be reunited.
The best option depends on the specific situation and the type of relationship you have with the person you are missing.