"Usiku mwema Emilian"
Translation:Have a good night Emilian
How do we know the class / category of the word? Different moments of time (morning, afternoon, night) could logically belong to the same class.
Some classes you can tell (like 1/2 all living beings/humans - you just learn the exceptions, or 3/4 for trees and plants), others you will just have to learn by heart until they make sense.
I agree completely with kathryn.f and PavitraUpa. I know Swahili is phonetic but for the long words I spend so much time sounding them out; having the pronunciation would make lessons more efficient for me, and I could ensure that I'm actually saying it right.
General pronounciating rule (apart from th/dh/gh - which are from Arabic loanwords): Pronounce vowels as in Italian. Pronounce consonants as in English.
And let's hope and pray the audio will be available soon.
There are videos on youtube where they say Swahili words, then the english version. These videos can last a few hours, so you can listen while you do chores and stuff.