The phrase "wert the air" is not a commonly used phrase in English, which might make its spelling difficult to discern. Using the International Phonetic Alphabet (IPA), we can break down how each sound is pronounced in the word. "Wert" is pronounced as /wərt/, with a voiced alveolar fricative 'r' sound. "The" is pronounced as /ði/, with an unvoiced 'th' sound. "Air" is pronounced as /ɛr/, with a long 'a' sound followed by an unvoiced 'r' sound. Understanding phonetics can make spelling tricky words significantly easier.