"Hast to" is a phrase that is commonly misspelled as "has to". The correct spelling of "hast to" reflects its archaic usage as a second person singular form of the verb "have". The phonetic transcription of "hast to" is /hæst tu/. The "a" sound is pronounced like in the word "cat," while the "t" sound in "hast" is aspirated. The "o" sound in "to" is pronounced like in the word "do".
The phrase "hast to" is a combination of the verb "hast" and the preposition "to". "Hast" is the second person singular form of the verb "have" in Old English. It was widely used in Middle English and Early Modern English as well. "To" is a preposition that indicates movement or direction towards a destination. The combination "hast to" is commonly used to express urgency or a necessity to do something quickly or without delay.