Spoken commonly by residents of Althar, natively by Painted Alligators
Spoken commonly by residents of Auroria
Spoken natively by Owel Treants,
Spoken commonly by residents of the Citrico Isles
Most anybody and anything with a mouth can learn to speak, read, and write common.
There exists an archaic form of common, sometimes spoken by Hanged Men in attempts to preserve the language.
Spoken natively by Necropossums, Pyzkies, other Fairy species
Spoken natively by Satyrs, Gnolls,
Spoken natively by Cockatrices
Spoken natively by Revealeons, updated once every 4-5 months on average.
Spoken natively by Flowercats, Frilled Petal Dragons, Fruit Frogs, Owel Treants, Pygmy Pyzkies,
Spoken commonly by residents of Hellside
Spoken natively by Fuzzy Moths. Note: This language is "spoken" via bio-luminescent flashing patterns, "speaking" or interpreting this language without technological aid is unlikely.
Singing Rabbats can natively sing in a language that can be understood by any other species, no other species is capable of this; hybrids have difficulty.
Spoken natively by Sea Dragons, Coralshell Turtles,
Spoken natively by Sphinxes(?), Painted Alligators can speak this language only when in conversation with a Sphinx, and will forget how to speak it soon afterwards.