"Wast active with" is not a commonly used phrase in English, so it may not have a standard spelling. Phonetically, "wast" would be pronounced /wɑst/ with a long "a" sound and a silent "e" at the end. "Active" would be pronounced /ˈæktɪv/ with a short "a" sound and a "k" sound at the beginning. "With" would be pronounced /wɪθ/ with a short "i" sound and a voiced "th" sound at the end. The combination of these words would likely be spelled as it is pronounced.