sentence: I tend to ride my bicycle from home to work , I have n't used my car or buses for a long time , because it is not healthy and costs a lot .
modified: I tend to drive with my bicycle from home to work , I do n't used my car or buses for long time , because is not healhty and costs .
transformation: VERB, PREP, VERB:TENSE, DET, PRON, SPELL, OTHER