Formal:
* Mwen manke ou. (This is the most common and literal translation)
Informal:
* Mwen sonje ou. (This means "I remember you," but it implies a longing for someone's presence)
* Mwen bezwen ou. (This means "I need you," and it implies a strong emotional connection)
* Mwen renmen ou anpil epi mwen manke ou. (This means "I love you very much and I miss you.")
You can also add a specific detail to make your expression more personal, for example:
* Mwen manke ou anpil, konbyen fwa mwen te panse sou ou jodi a. (I miss you a lot, how many times I thought about you today)
Remember that the best way to express your feelings is through authentic expression. Choose the phrase that resonates most with you and adjust it to fit your specific situation.