Normally, you sound out a syllable by first pronouncing the letter sound and then adding the vowel sound. There an exception to this rule, however: when a word ends in a Chet, an Ayin or a dotted Hey (mappiq) and has a Patach vowel mark, you first pronounce the vowel sound and then add the letter sound. Thus,
Readings: Accent note: When a furtive patach appears under a Chet, Ayin, or dotted Hey, the accent falls on the preceding syllable (e.g., RU-ach, ye-SHU-a).