My headcanons for other Elementals languages:
Assuming the English we hear and read is just the Water-language translated for our convenience, I imagine the actual language to have a phonetic inventory that invokes splashing noises, the crashing of waves, and the rushing of rivers; with a healthy dose of slurps and gulps thrown in.
The Earth-language sounds like rattling and cracking stones, groaning earth, and the snapping of twigs. Vowels are held in such a way as to make speech a slow and patient process and consonants are often rolled. Clicks are a prominent feature.
The Air-laguage is breathy and whispy. Expect the letter H to show up in every word and some phonemes require you to inhale inorder to pronounce them correctly.







