don't understand
I don't know what to say.
टॉम को समझ नहीं आता।
Tom doesn't understand.
मैंने कहा,"बॉल लेके आ।"समझ नहीं आता क्या?
I said, “Bring the ball.” Do you not understand?
— तारे ज़मीन पर (2007)
I don't understand this country.
हाल ये है कि कुछ समझ नहीं आता।
The situation is such that I can't understand anything.