I miss him
I miss him more than ever.
C'est moi, il me manque un truc.
It's me—I'm missing something.
— La Vie d'Adèle - Chapitres 1 et 2 (2013)
I miss him already.
Cela fait un an que je ne le vois plus, il me manque.
It's been a year since I last saw him, I miss him.
— Le Frère 2 (2000)
I'm missing a book!
Il me manque le dernier volume de la collection.
I'm missing the last volume of the collection.
I miss him a lot.