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 Hera te raiti.
Then Hera switched on the light.
And then... - kātahi ka...

Whakakängia te umu. AND Me whakakä te umu.
Turn on the oven. You should turn on the oven.

Whakakāngia te tukuata.
Turn on the projector.

Whakakāngia te whakamahana.
Turn on the heater.

Whakakāngia te raiti.
Turn on the light.