āhei - to be able, possible, capable
Kāore e taea e au te haramai ki te mārena.It is not possible for me to come to the wedding.I am able... - Ka taea e...
Tērā pea e taea te whare te whakatū anō. Tērā pea e kore.Maybe it'll be possible to rebuild the house. And maybe not.Perhaps - Tērā pea