• rarly,
• charle,
• cakll,
• yearl,
• cral,
• ncall,
• fearl,
• darl,
• curle,
• carlee,
• catle,
• cal,
• cacel,
• cario,
• eagl,
• carral,
• cerly,
• carsh,
• parl,
• canle

• care,
• Carlo,
• Carrol,
• car,
• Carola,
• Carle,
• carillo,
• carol,
• Carole,
• Carolee,
• Carullo,
• carollo,
• carrell,
• Caryl,
• carello,
• Carlee,
• Carwell,
• carll,
• earl,
• Carla,
• cart,
• carroll,
• card,
• call,
• Carli,
• Caroll,
• Carly,
• curl,
• Carlie,
• Carley,
• Carwile,
• carrel,
• cal.,
• Carlow.

The plural of the "Carl" can be the "carls".

The singular of the "Carl" can be the "Carl".