ground on is grind on's Past Tense

grind on

US 
UK 
  • Web基于
Simple Present:grinds on  Present Participle:grinding on  Past Tense:ground on  

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard