Most repeated Grammar Rule for SSC CGL, CHSL, and Bank Exams! 📚 ✅ Key Concept: If the sentence shows Doubt/Uncertainty -Use Whether/If If the sentence shows Certainty -Use That Example: I doubt whether he will come. (Unsure) I know that he will come. (Sure) Save this for your revision! 📌 #SSCCGL #BankPO #EnglishForExams #GrammarRules #ErrorDetection #SSCChsl #CompetitiveExams #StudyShorts #Education