Examples of using "مهتمّا" in a sentence and their english translations:
Mennad cared.
Fadil became interested in Islam.
Fadil was interested in horses.
Sami was interested.
Sami was minding his own business.
Mennad cared about his friends.
Sami still cares about Layla.
Sami wasn't interested in religion.
Sami was just minding his business.
Sami was just minding his own business.
Sami cared about everyone in his life.
Sami wasn't paying attention to anything else but that.