sentence: Young people not only have to spend a lot of time making themselves qualified in one specific subject , they also have to have a wide range of knowledge .
modified: Young people are not only have to spend much time to make them be professional in one specific subject , they also have to know a wide range of knowledge .
transformation: VERB:TENSE, OTHER, VERB:FORM, VERB:FORM, PRON, VERB, OTHER, VERB