Is "I am knowing the answer" correct?

Why

Farah's rule works for most verbs describing actions you can picture happening over time — "I am running", "I am eating", both perfectly natural. "Know" belongs to a different family of verbs, called stative verbs, which describe a state of mind or a fact rather than an action being actively done — knowing, liking, wanting, believing, owning, understanding. These verbs describe something that simply IS, not something being performed moment by moment, so English generally doesn't put them in the continuous form at all: you either know something or you don't, there's no version of "knowing" happening bit by bit the way "running" does. Test: try other stative verbs the same way — "I am liking this song" and "I am wanting some water" both sound just as off as "I am knowing", for the identical reason, while genuinely active verbs like "I am singing" or "I am walking" sound completely natural. Her brother is right: "know" is a stative verb and stays as "I know", not "I am knowing" — this is one of the most common patterns to double-check, since it trips up learners across many languages.