The correct spelling of the phrase "study at profuse" is not entirely clear. However, using the International Phonetic Alphabet (IPA), we can break down the individual sounds of the words. "Study" can be transcribed as /ˈstʌdi/, with stress on the first syllable and a short "u" sound in the second syllable. "At" is simply /æt/. As for "profuse", there are a few possible transcriptions, such as /prəˈfjuːs/ or /proʊˈfjuːs/. Regardless, the key is to pay attention to the stress and vowel sounds in each word to correctly spell this phrase.