The correct spelling of the phrase "hast visitors" is actually "has visitors." The word "has" is the present tense third-person singular form of the verb "have." In phonetic transcription, it can be written as /hæz/ with the "z" sound at the end. "Visitors," on the other hand, is spelled phonetically as /ˈvɪz.ɪ.tərz/, with stress on the second syllable and the "z" sound at the end. So, if you have guests coming over, you can say, "She has visitors today."