Asubordinateclause,alsoknownasadependentclause,isagroupofwordsthatcontainsasubjectandaverbbutcannotstandaloneasacompletesentence.Itdependsonamainclausetoformafullthought.Subordinateclausesoftenbeginwithsubordinatingconjunctions(suchas"because,""although,""when,"or"if")orrelativepronouns(like"who,""which,"or"that").Theseclausesadddetail,context,orconditiontothemainideaofasentence.Forexample,inthesentence"IwillcallyouwhenIarrive,""whenIarrive"isthesubordinateclause,providingadditionalinformationaboutthetimingoftheactioninthemainclause.Subordinateclausesareessentialforcreatingcomplexandnuancedsentencesinwritingandspeech.
