I cannot find information on this prefix, even in the article "Philippines Illustrated: Affixes Used In Cebuano" by Edgie Polistico.
All I know is that it is past tense. The complete word was: mingpuyo
-Combo
* the letter [d] is used for both /d/ and /r/.
Here are some conjugations of verbs to ming- forms.
* the letter [d] is used for both /d/ and /r/.