Rules for past tense negation
Change the subject prefix
Li changes to ku
Verb stays the same
Ex: sikuosha
Rules for present tense negation
Change the subject prefix
Drop the na
Change verb ending to i
Ex: sioshi
Rules for future tense negation
Change the subject prefix
Ta stays the same
Verb stays the same
Ex: sitaosha
Rules for perfect tense negation
Change the subject prefix
Me becomes ja
Verb stays the same
Ex: sijaosha
I (negative prefix)
Si-
You (negative prefix)
Hu-
He (negative prefix)
Ha-
We (negative prefix)
Hatu-
Y’all (negative prefix)
Ham-
They (negative prefix)
Hawa-
I did not wash
Sikuosha
You did not wash
Hukuosha
He did not wash
Hakuosha
We did not wash
Hatukuosha
You all did not wash
Hamkuosha
They did not wash
Hawakuosha
I am not washing
Sioshi
You are not washing
Huoshi
He is not washing
Haoshi
We are not washing
Hatuoshi
You all are not washing
Hamoshi
They are not washing
Hawaoshi
I will not wash
Sitaosha
You will not wash
Hutaosha