The sequence /ɡn/ was likely realized as [ɣn] at first, with subsequent developments varying by region.[12][lower-roman 1] /j/ was likely realized as [ʝ] or [ɟ], possibly with gemination in intervocalic position.[13] /d/ and /ɡ/ might have been fricatives or approximants in intervocalic position.[14] /s/ might have been apico-alveolar.[15] /ll/ might have been retroflex.[16][lower-roman 2] /f/ might have been bilabial.[17]