sentence: On the other hand , the bad things are that you have to park outside of the city centre and these areas will be crowded , you ca n't visit places with your car and people with physical problems could have difficulties with public transport .
modified: On the other hand the bad things are that you have to park out of the city centre and these areas will be crowded , you could n't visit places with your car and people with physical problems could have difficulties with public transport .
transformation: PUNCT, PREP, VERB:TENSE