"Mark Krein" is spelled as /mɑrk kɹeɪn/ in IPA phonetic transcription. The first syllable is pronounced as "mar" with the "a" pronounced like the "a" in "car". The second syllable is pronounced as "kreyne" with the "ey" pronounced like the "ay" in "day". The "n" at the end of the word is pronounced by bringing the tip of the tongue to the alveolar ridge while making the "n" sound. This spelling of the name is commonly used in English-speaking countries.