Not exhaustive, of course! Double bars are Discord spoiler tags, for your usage convenience.
K'atini! ||Endure!||
(Meant as encouragement.)
K'oyacyi. ||Stay alive.||
(A gentle command, meant to encourage or as a toast.)
Kandosii! ||Awesome!||
(Has this or similar meaning when used as encouragement.)
Oya! ||Hooray!||
(One of many similar meanings, always positive.)
Oya manda! ||Live Mando!||
Aliit ori'shya tal'din. ||Family is more than blood (line).||
Mishuk gotal'u meshuroke, pako kyore. ||Pressure makes gems, ease makes decay.||
Verd ori'shya beskar'gam. ||A warrior is more than armor.||
(Sometimes abbreviated as "VOB.")
Ke nu jurkadir sha mando'ade! ||Don't mess around with Mandalorians!||
Nu jurkad Mando'ade, burc'ya! ||No messing around with Mandalorians, friend!||
(Words of encouragement, as opposed to the warning of the above phrase.)
Ret’lini. ||Backup plan.||
(To quote 501st: "a Plan B, the classic Mando mind-set of always being ready for the worst.")
Pakalat, Kar'tayl, Mando'a. ||Wit, Knowledge, Language.||
Munit tome'tayl, skotah iisa. ||Long memory, short fuse.||
(Typical Mando mindset, but probably not a socially productive one.)
Kaysh meg miit'gaana, oyacyi. ||Who writes, remains.||
Nu kyr'adyc, shi taab'echaaj'la. ||Not gone, merely marching far away.||
Ni su'cuyi, gar kyr'adyc, ni partayli, gar darasuum. ||I'm still alive, you're dead, I'll remember you, so you're eternal.||
(For rememberance of the dead.)
Gar taldin ne jaonyc; gar sa buir, ori'wadaas'la. ||Your bloodline isn't important; you as a parent are very valuable.||
Ib'tuur jatne tuur ash'ad kyr'amur. ||Today is the best day for someone else to die.||
More sayings and phrases: https://starwars.fandom.com/wiki/Mando%27a/Legends#Phrases
Kar'am ra kyr'am. ||Live or die. If you aren't changing, you're dead.||
Gotal’u dajune sa burc’yase: birov bal serim. ||Make plans like friends: many and true.||
Anay solyc dajun shekemi de t’ad’yc. ||Every first plan is followed by a second.||
Ke’cuy jate bal burcya’la. Jate’shya ib’tuur, jatne nakar’tuur. Ke mandokarla. ||Be good and friendly. Better today, best tomorrow. Be the epitome of Mando culture.||
Ke drashaa jahaala. ||Grow healthy. You better have a good life if you know what's good for you.||
Gar ruyot nu jaon'yc; kando'shya meg nari ti jiila ca'nara. ||Your past isn't important; more weighty is what you do with (the) immediate time.||
K'atini shi! ||Just endure!||
(Meant as encouragement.)
Trattok’or, tsikador tug’yc. ||Fall down, get back up again.||
Uraktone akaane o'r mirshe. ||The most difficult wars are in the brain.||
Ke cuyir nare bal miite, bal k’atini! ||Be your words and actions, and be tenacious!||
Meh ni ramaana, vercopa ramaanar tsikala. ||If I die, I hope/wish to die prepared.||
Kebbur bal vorer ne'bralov jate'shya draar kebbur. ||Trying and accepting failure is better than never trying.||
Cuyi muun bal shuku. Cuyi kotyc bal cuyani. Ke cuyi sa kal: muun eso bal pel petir. ||Be hard and break. Be strong and survive. Be like a blade: hard side and soft center.||
Ori'uram, kih'miite. ||Big mouth, small words.||
Ke partayli uur. ||Remember silence.||
Trikaryc hibrar, briikase verd. ||Sad student, happy warrior.||
Urakto ba'jur, pakod parjaise. ||Difficult education, easy victories.||
Aliit cuyi burc’yase meg mhi vore vaal mhi taabi. ||Family exists as the friends that we accept while we march — family is the friends we make along the way.||
Ori'sol kih parjaise koti or'arue. ||Many small victories overpower a large foe.||
Verd ori'shya beskar'gam, a shi beskar'gam atinii. ||A warrior is bigger than their armor, but only armor endures.||
Oyacyir cuyi oya'karir par aliit bal kot. Oya'cye kyrdi ti par'jila nari be mar'eyce be manda. ||To live is to hunt for clan/identity/family and strength. Life ends with the victorious act of the discovery of the Mandalorian oversoul.||
Republic Commando Soundrack Official Lyrics, from LucasArts itself (archived backup): https://web.archive.org/web/20060821175704/http://www.lucasarts.com/games/swrepubliccommando/downloads/mp3s/Lyrics.pdf
Republic Commando soundtrack that was once available on official Republic Commando website (archived backup): https://archive.org/details/RepublicCommandoOST
Rhyme (as it appeared in Order 66):
Ba'jur bal beskar'gam,
Ara'nov, aliit,
Mando'a bal Mand'alor—
An vencuyan mhi.
As commands:
Ke juri beskar'gam. Ke jorhaa'i Mando'a. K'ara'novo aliit. Ke gaa'tayli aliit cuyanir bal bralir. Ke ba'juri ade sa Mando'ade. Ke shekemi Mand'alor.