kaltxì

[tompakato]

Kaltxì ma frapo, oeru syaw Pier. Oe plltxe nì'Ìnglìsì sì nìFranse sì nì'Espanyol sì nìLospan.
Okay, that's my first try composing anything in Na'vi and I hope I didn't make a big skxawng out of myself!

[Tìtstewan]

Kaltxì ulte zola'u nìprrte' ma tompakato alu Pier!

Kaltxì ma frapo, oeru syaw Pier. Oe plltxe nì'Ìnglìsì, sì nìFranse, sì nì'Espanyol sì nìLospan.

Just to many sì. Not wrong but sounds strange, use comma.
Slä txantsana tìkangkem.

It's nice to see new members here!

Eywa ngahu!
- ta Tìtstewan

[Stranger Come Knocking]

Welcome to the forum.

[Kamean]

Kaltxì ma Tompakato ulte zola'eiu nìprrte'!

[Tiluko]

Kaltxì ma Tompakato!
I'm fairly new to the forums and to learning Na'vi as well.

[Tanri]

Zola'u nìprrte ma Tompakato!
Nga zola'u ta Eywa'eveng srak? Nga pamrel soli fìtsengur 'awvea alo ulte plltxe nga na Omatikaya!

Kaltxì ma frapo, oeru syaw Pier. Oe plltxe nì'Ìnglìsì sì nìFranse sì nì'Espanyol sì nìLospan.

Very good, no joke.
Welcome to the forum which currently appears to be not-so-much alive, however don't be discouraged, it's only some kind of winter sleep.

[Tsmuktengan]

Wow... you just arrived here and you speak better Na'vi than me since I've been here... I think you rock (and I think I am just crap not being able to do this, lack of time). 

Zola'u nìprrte ma tsmuke. We have online session twice per week to practice and help learning Na'vi by speaking online... and have fun as well (with a teacher that like drawing to offer conversation topics). Would you like to join in? 

[`Eylan Ayfalulukanä]

Kaltxì, ma 'eylan amip!

Did I properly decode the last language you have listed as Lojban?