I'm considering getting a tattoo with the phrase "Always Truth" or "Always the Truth" in Latin, but I'm not 100% how to translate it, because I don't really understand Latin noun declension. My first guess was Semper Veritas, and based on Semper Fidus and Semper Fidelis, I'm guessing that's correct, though Fidus and Fidelis are adjectives and Veritas is a noun, so I'm not sure if that makes a difference.
Further, Google Translate indicates the correct translation is Semper Veritatem, though I know better than to assume that Google Translate always knows best, particularly as I suppose this is grammatically more of a sentence fragment than a proper sentence.