There are basically four vowels in the Navajo alphabet. Vowels can be either long or short in duration. The long
vowels indicated by doubling of the letter. A glotta stop is ' then followed by the letter. Vowels with hook
underneath them are nasalized. When you say these the sound passes through your nose. When
there is a tone on top of the vowel, you raise the pitch. Double tone on top goes double pitch longer.
The slash L, you say it with blowing thru it.