There have been two ways that questions have been structured:
1 using question words, or interrogatives,
|Kei hea aku kākahu?
|Where are my clothes?
2 using a question intonation for sentences that don’t have interrogatives.
|Kei reira ō kākahu?
|Are your clothes there?
With the second example, anō will often be introduced into the question pattern and also used for emphasis.
|I peke ake anō te tohorā i te moana?
|Did the whale actually jump out of the sea?
|Kei te haere anō koe ki te kauhoe?
|Are you actually going for another swim?
|He take anō tā koutou?
|Do you people actually have another matter?
|Kei te rūkahu anō kōrua?
|Are you two actually lying?
Further explanations and examples: Te Kākano p. 110.
Titiro ki ngā whakaahua ka whiriwhiri ai i te whakautu e tika ana mō ia pātai.