The spelling of the word "hast foundation" can be explained using the International Phonetic Alphabet (IPA) as [hæst faʊnˈdeɪʃən]. "Hast" is spelled with the "a" sound as in "cat" followed by the "s" sound and the "t" sound. "Foundation" is spelled with the "f" sound followed by the "ow" sound as in "cow," the "n" sound, the "d" sound, the "ey" sound as in "hey," the "sh" sound, a schwa sound, and the "n" sound again. Together, they form the phrase "hast foundation" pronounced [hæst faʊnˈdeɪʃən].