The spelling of the phrase "wast nervous" is actually incorrect when it comes to Standard English. The correct form is "was nervous". In IPA phonetic transcription, the correct pronunciation would be /wɑz ˈnɜrvəs/. The use of "wast" instead of "was" suggests an archaic form of English that has fallen out of use. It's important to remember that spelling mistakes can lead to misinterpretation and miscommunication in written communication.