not have to

例句：

1. 1. I don't have togo to work tomorrow; I can stayhome and relax.
   我明天不用去上班，可以待在家里放松。
2. 2. Shedoesn't have toworry about the weather; it's sunny outside.
   她不必为天气担心，外面阳光明媚。
3. 3. We don't have to wait for the bus; we can take a taxi instead.
   我们不必等公交车，可以打车。