Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, during a conversion between a target block of a video and a bitstream of the target block, whether to apply a first mode to generate a hypothesis of the target block, the target block being a multiple hypothesis prediction block coded with a second mode; and performing the conversion based on the determining. Compared with the conventional solution, the proposed method can advantageously improve the coding efficiency and performance.