Wiktionary
phr. Indicates that the speaker is not understanding the current subject or situation.
Usage examples of "i don't understand".
But I don't understand: if she doesn't believe in them, what are we doing here?
But tell me, what's this about islands, for I don't understand it?
It has resulted in all kinds of incorrect choices on the part of the young as to which sex they will assume in the adult state (I don't understand that part at all myself, sir)—.
It has resulted in all kinds of incorrect choices on the part of the young as to which sex they will assume in the adult state (I don't understand that part at all myself, sir)it has thrown confusion into an art somewhere between cartography and horticulture that Ho-Par thinks is very important to the future of Jupiterand it has weighed every Jovian down with an immense burden of guilt because of what their armies and military administration have done to alien life-forms on Ganymede, Titan and Europa, not to mention the half-sentient bubbles of the Saturnian core.