Okay, Elvish is AWESOME. But may I spread a reminder that there are languages of other races of Middle-Earth on Parf Edhellen, so if anyone could share where I could learn Khuzdul grammar it would really be thankful.
We know next to nothing about Khuzdul grammar compared to Sindarin or Quenya, but here are three pretty good analyses of what’s available to start with:
If you're interested in non-canon expressions of Khuzdul, then The Dwarrow Scholar might be what you're looking for. Not an especially authoritative source, but it does flesh-out the language in a way that's quite compelling.