As I understand it, irregular plurals like {cha}, {ngop}, {negh}, and {no'} are treated as grammatically singular. But does that extend to pronouns?

The following sentences don’t bother me that much:

{ngop wISay'moH}
{Dulegh'a' negh?}
{no' luqaw}
{cha yIghuS!}

But these seem downright weird:

{nuqDaq 'oH ngop'e'?}
{'Iv ghaH no'ra''e'?}
{cha 'oH'a'?}
{negh ghaHlaw'.}

Do we have canonical evidence of pronouns used to stand in for irregular plural nouns?