The spelling of the word "case nerve" may be perplexing to some who are unfamiliar with the intricacies of English spelling. However, the correct pronunciation can be explained using the IPA phonetic transcription: /keɪs/ /nɜrv/. The first syllable "keɪs" is pronounced like "kays", while the second syllable "nɜrv" rhymes with "serve". When the two syllables are combined, the word is pronounced as "kays-nerv". Looking at the IPA transcription can help clarify the pronunciation of English words that might otherwise be confusing.