te whakaako - teaching
Ka taea ia te whakaako i ngā tamariki?Is he/she able to teach the children?I am able... - Ka taea e...
Kāore ia e taea te whakaako i ngā tamariki?Is he/she unable to teach the children?To be unable - Kāore... taea...
Kei te whakaako rātou i te reo Māori ki ā rātou tamariki.They are teaching Māori to their children.
Kei te whakaako rātou i ā rātou tamariki ki te reo Māori.They are teaching their children Māori.