Chechen plural forms

From some quick web searches it looks like Chechen has two plural forms. One is used for 1, and the other for >= 2, but I can't obviously tell which is used for 0. Can you provide some insight?

Chechen plural expression is this: Plural-Forms: nplurals=1; plural=0

Chechen plural: Plural-Forms: nplurals=1; plural=0

Please bring information about the Chechen language somebody

"nplurals=1; plural=0" is incorrect. There are at least two plural forms: "Most nouns form their plural by simply adding -sh or -ash, e.g. linz 'lens' - linzash 'lenses'." Please clarify what the rules are.

in the Chechen language for example:
1 file - 1 fail
2 files- 2 fail
3 files - 3 fail
...................
But and if one word that for example is simple:
file - fail
files - failash

Please bring information about the Chechen language somebody

Chechen plural: "Plural-Forms: nplurals=2; plural=(n!=1);
Please bring information about the Chechen language somebody

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Chechen plural: Plural-Forms: nplurals=2; plural=(n!=1);
Please bring information about the Chechen language somebody.
It is urgently necessary.

Sorry, I'd missed that you'd provided the correct forms. I've configured Chechen with nplurals=2; plural=(n != 1).

Thank you very match William!