Nice try Marie and others but I would strongly support Gil's recommendation in post #9 . Attempts to explain French pronunciation on the basis of sounds, particularly vowel sounds, from English words are doomed to failure.Hi!
18 = dizz (like in dizzy) + U (difficult in english, jus say "oo", like in taboo) + it (like... it!)
19 = diss (like in dislike) + nough (like in enough is enough)
it is not perfect, but that will work for sure!