On-line Te Reo Māori Dictionary

Whakakāngia te umu.
Turn on the oven.
Commands using the passive - Tāpirihia, Tīkina...

Tuatahi, whakakāngia te umu.
First, turn on the oven.
Ordinal numbers (First, second, third...) - tuatahi, tuarua...

Kātahi ka whakakāngia a Tame te raiti.
Then Tame switched on the light.
And then... - kātahi ka...

Whakakāngia te tukuata.
Turn on the projector.

Whakakāngia te whakamahana.
Turn on the heater.

Whakakāngia te raiti.
Turn on the light.