Do you have the notes? They kind of do, I know what you mean.יש is yesh. It's used for there is and have. אין there is no. Re negative version of yesh. It's written transliterated as ein. If you want to hear both people will say use forvo. I say Google "Amir dadon" & the song yesh ein sof. (Translates as there's no end, aka there's infinity), here's the acoustic version: https://youtu.be/vPlfgn8jZVk (yesh ein sof line starts at 1 minute, 10 seconds). Also I recommend Memrise Duolingo Hebrew vocab course , words are on audio pronounced individually without grammar.