The spelling of the phrase "study at continue" follows the standard conventions of English. The word "study" is spelled with a "y" instead of an "i" to approximate its pronunciation, which is /ˈstʌdi/. The word "at" is spelled with the letter "a" and the sound represented by the phonetic symbol /æ/. Finally, the word "continue" is spelled with a "u" following the letter "c" to represent its pronunciation, which is /kənˈtɪnju/. Together, these words form a common phrase used to describe ongoing education or learning.