Why transformer cannot rotate though the principle behind induction motor is similar to a transformer

The main principle of motor is “whenever a current carrying conductor placed in a magnetic field it experiences force”.
There is a condition i.e. when stator is not physically displaced, when AC supply is given to stator, there would be production of magnetic field (stationary not rotating). Then rotor would rotate half forward, half reverse. So ultimately rotor would be stationary. (This condition happens with Transformer).
But in all the cases of Induction motor the stator is physically also displaced, so Rotating magnetic field is there, so rotor rotates.
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