srìyevung oeti? rutxe =S

[Teyl Maktoyu Ayfìwopxä]

I'm translating some sentence, and I already came up with a problem, I need to put a <ei> into rey, but it's supposed to be in position two.
So can I still make it reiey?

[omängum fra'uti]

You might want to go over Na'vi in a Nutshell, it covers situations like this quite nicely, and is in general a good grammar reference.

When there's only one syllables, all the infixes go in it, retaining the same order they would normally have.

And in regards to your thread subject, srung is a noun, so doesn't take infixes.  If you want to say "Help me" it would be "Srung sivi oer".