Crossword clues for I __ know:KNOWFeel certainKNOWHave heard (of)KNOWApprehend as true.KNOWHave insight.KNOWSIsn't just guessingKNOWSIs aware ofKNOWSIs cognizant ofKNOWComprehendKNOWSHas no doubt ofKNOWBe confident ofKNOWNot just assumeKNOWBe confident aboutKNOWWhad'Ya ___? (radio show)KNOWUnderstand, as a languageKNOWHave the factsKNOWSee 17-AcrossKNOW___-it-allKNOWSHas down patKNOWHave the right answerKNOWBe aware ofKNOWMore than suspectKNOWBe certainKNOWHave no doubt aboutKNOWBe intimate withKNOWBe absolutely sureKNOWMore than thinkKNOWHave memorizedKNOWDon't have to askKNOWRecognizeKNOWINGInformedKNOWHave down patKNOWBe acquainted withKNOWBe in onKNOWSIs sure ofKNOWSHas down coldKNOWBe sure ofKNOWSIs in onKNOWSMore than just thinksKNOWHave no doubtsKNOWPerceive as factKNOWSRecognizesKNOWBe familiar withKNOWFeel in one's bonesKNOWUnderstandKNOWSHas the 411KNOWGraspKNOWSHas in mind?KNOWHave by heartKNOWSIs positiveKNOWBe sure.