you mustin't write on it改成祈使句

You mustn't write on it.怎么改成祈使句? (2) you can’t write on the desk.（祈使句） You can't write on the desk.改为祈使句 You can't write on the desk (改为祈使句） can you write it on the blackboard?(改为祈使句) 1:You must't write on it. You can't put it on the table改为祈使句 Now,you can write your message.怎样改成祈使句 you can turn on the TV.改成祈使句 you can not walk on the geass改成祈使句 把 you cannot walk on the grass here改成祈使句 You can draw on the waii.(改成否定祈使句）