signing up is sign up's Present Participle

sign up

US 
UK 
  • na.同“sign”
  • Web登记;注册;签约雇用
Simple Present:signs up  Present Participle:signing up  Past Tense:signed up  
na.
1.
同“sign”

Sample Sentence

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