On-line Te Reo Māori Dictionary

Ko te raumati te wā kauhoe.
Summer is the time for swimming.
Identity sentences - ko...

I ngā hōtoke kei ngā raorao, kei ngā mānia, ā, i ngā raumati kei ngā maunga.
In the winter they were on the foothills and on the plains, and in the summer they were in the mountains.
Simple sentences: past tense - i

I ngā raumati, kaukau ai au i te moana.
In the summer, I regularly swim in the sea.
Habitual action - ai

Ko te Raumati taku tino wā o te tau.
Raumati is my favourite time of the year.

I ōna wā he iwi manene; i ngā hōtoke kei ngā raorao, kei ngā mānia, ā, i ngā raumati Kei ngā maunga.
In those days they were a nomadic tribe; in the winter, [they] were in the foothills and on the plains, and in the summer [they] were on the mountains.

Ko te timatatanga o te raumati te wā haere ki te hopu tītī.
The start of summer is the time to go mutton-birding.