The correct spelling of the phrase "wast generous" is actually "was generous." The mistake in spelling may be due to a misunderstanding of past tense verb conjugation in English. In the past tense, "was" is used for singular subjects such as "I, he, she, it" while "were" is used for plural subjects such as "they, we, you". The correct pronunciation of "was generous" is /wɑz ˈdʒɛnərəs/.