 
Sofia L. answered  05/05/19
99th percentile SAT scorer, engaging and enthusiastic tutor!
Hellooooo there! You're right: those spellings are meant to mimic the spoken prolonging of words. You wouldn't write "Hellllllllo" or "Heeeeeeello" because the end of the word, that "o" sound, is what lingers. It's hard to explain, as a lot of it just comes with practice. Try hearing the word in your head as you write it and paying attention to where your voice lingers. I wouldn't worry about it too much, though! Even if you do use a less common version, people will probably understand what you mean.
 
     
             
                     
                    