How Do You Spell DIDST ONE THING?
Pronunciation: [dˈɪdst wˈɒn θˈɪŋ] (IPA) 
The spelling of the phrase "didst one thing" follows the traditional English spelling system, which sometimes contains letter combinations that do not correspond to their sounds. In this case, "didst" is pronounced /dɪdst/, with the "d" being pronounced twice. The ending "st" indicates the second person singular past tense form of "do", which was commonly used in Early Modern English. Overall, the spelling of "didst one thing" is a nod to the historical roots of the English language.
