Datapoint Nengee/Negation and indefinite pronouns

There seems to be a difference in emphasis.
If the negated constituent does not precede the verb, the negative marker na also occurs before the verb in the same clause or in the matrix clause (Huttar & Huttar 1994: 253).

Values

Preclusion possible with preverbal indefinites

Example 4-172:
Ná wan meti mi kii.
Ná
neg
wan
one
meti
meat
mi
I
kii.
kill
Not a single animal I killed.

Source: nd

Example 4-173:
A ná abi toobi anga ná wan sani seefi.
A
he
ná
neg
abi
have
toobi
trouble
anga
with
ná
neg
wan
one
sani
thing
seefi.
self
He was not concerned about even a single thing.

Source: Huttar and Huttar 1994: 255

Confidence:
Very certain