No, you cannot put a bike in reverse if it doesn't have gears or a clutch. In most motorcycles, the transmission system is designed to provide forward motion by engaging different gears. The gears are typically controlled by a clutch that allows the rider to disengage the engine's power from the transmission temporarily.
Without gears or a clutch, the motorcycle's transmission system is likely to be a single-speed or automatic transmission, commonly found in some scooters or electric motorcycles. These types of transmissions typically provide only forward motion and do not have a reverse gear.
If you need to move a motorcycle backward without a reverse gear, you would need to use physical force or assistance to push or maneuver the bike in the desired direction. Alternatively, some electric motorcycles or scooters may have a reverse function built into their electric motor system, allowing for backward movement, but this feature is not commonly found in traditional motorcycles.