该 Strokes Write it Listen 该 gāi should; ought to; probably HSK 2 8 strokes Radical 讠 Sound + meaning 3 words Built from讠meaningyánwords, speech; to speak, to say亥soundhài12th terrestrial branch; used in transliterations How it works讠 hints at the meaning (speech), and 亥 hài hints at the sound.