On-line Te Reo Māori Dictionary

Kua eke atu ia ki ngā taumata o te waru tekau mā whitu tau.
She has reached the age of eighty seven years.
Simple sentences: past completed tense - kua

Maranga mai ai au ia rā, ia rā i te whitu karaka.
I always get up every day at seven o'clock.
Habitual action - ai

Ka taea au te whakaoho e koe ā te whitu karaka?
Are you able to wake me at 7 o'clock?
I am able... - Ka taea e...

I te whitu karaka i te ahiahi, ka mate ia.
At seven o'clock in the evening, he died.
Past - specifying a particular time - i te

I te whitu karaka, kua haere mai ia.
He will have left at seven o'clock.
Past - specifying a particular time - i te

E whitu ngā parāikete?
Are there seven blankets?
Numbering people - tokorua, tokotahi...

E whitu ōu parāikete.
You have seven blankets.
Numbering things - e rua, e toru...

E whitu ngā waka.
There are seven cars.
Numbering things - e rua, e toru...

Ko te whitu karaka i te ata.
7 o'clock in the morning.
Telling time - kara

Hei te whitu karaka.
See you at seven o'clock.
Telling time - kara

Ka kai tātou ā te whitu karaka.
We'll eat at seven o'clock.
Telling time - kara

Kāore e whitu ngā waka.
There are not seven cars.
Negating counting things - Kāore e...

I te reo Māori, e ono ngā pū-tohu-wa matua, e whitu me ka whakaarohia te "kātahi āno... ka", engari he mono tūkē te "kātahi anō".
In the Māori language, there are six main time markers, seven if we include "kātahi anō... ka", but "kātahi anō" is considered a standalone.

E whitu marama tōna pakeke.
Seven months is her age.