sentence: When you travel in your own car you do n't have to wait for a specific time and you can go anywhere , but when you travel on public transport you must wait for the time when the public transport can take you .
modified: When you travel in your own car you do n't have to wait a specific time and you can go somewhere but when you travel in public transport you must wait to the time when the public transport could catch you .
transformation: PREP, ADV, PUNCT, PREP, PREP, VERB:TENSE, VERB