▁is ▁less ▁when ▁they ▁occur ▁after ▁nas al ▁con son ants ▁than ▁after ▁non - nas al ▁ones . ▁ ▁Nas al ization ▁in ▁G be ▁Cap o ▁( 1 9 8 1 ) ▁has ▁argued ▁that ▁nas al ization ▁in ▁G be ▁languages ▁should ▁be ▁analyz ed ▁ph on em ically ▁as ▁a ▁feature ▁relevant ▁to ▁v ow els ▁and ▁not ▁to ▁con son ants . ▁This ▁means ▁that ▁nas al ▁v ow els ▁are ▁distinct ▁from ▁or al ▁v ow els , ▁while ▁nas al ▁and ▁vo iced ▁or al ▁stops ▁are ▁treated ▁as ▁predict able ▁variants . ▁For ▁example , ▁non - s yll ab ic ▁nas al ▁con son ants ▁are ▁always ▁followed ▁by ▁a ▁nas al ▁v owel , ▁and ▁sy ll ab ic ▁nas al ▁con son ants ▁are ▁analyz ed ▁as ▁reduced ▁forms ▁of ▁con son ant – v owel ▁sy ll ables . ▁This ▁analysis ▁is ▁in ▁line ▁with ▁reconst ru ctions ▁of ▁the ▁proto - Vol ta – C ongo ▁language , ▁for ▁which ▁similar ▁propos als ▁have ▁been ▁made . ▁ ▁T one ▁The ▁G be ▁languages ▁are ▁t onal ▁languages . ▁In ▁general , ▁they ▁have ▁three ▁tone ▁levels , ▁High ▁( H ), ▁Mid ▁( M ), ▁and ▁Low ▁( L ), ▁of ▁which ▁the ▁lower ▁two ▁are ▁not ▁ph on em ically ▁contrast ive . ▁Thus , ▁the ▁basic ▁ton emes ▁of ▁G be ▁are ▁' High ' ▁and ▁' Non - High ', ▁where ▁the ▁High ▁ton eme ▁may