In the event that; in case that; supposing that; particle signals hypothetical situation.
Tened moak da no ekak ali on-olin chakos nem bilang.
In case I do not return right away, you come after me.
Nem bilang i on-oran, isekep joy pahiy.
If it happens to rain, you bring the rice inside.
Nem bilang i gwariy aspolen mod chalan, ngoy konen mo?
Supposing you meet someone along the way, what will you say?
Konen ko nem bilang i metaen ko.
I will tell him if I happen to see him.
No bilang i edom, alam nem megwa-gwa.
Should it be ripe, you get it tomorrow.
Can also occur as a clause-final phrase nem bilang; often as a response.
Sema payow nem bilang.
The rice field, for example. [response]