| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not have to worry [prep] [art] [noun sg] | 10 |
|
| 2 | [adv] have to worry [prep] [art] [noun sg] | 10 |
|
| 3 | [not/n't] have to worry [prep] [art] [noun sg] | 10 |
|
| 4 | n't have to worry [prep] [art] [noun sg] | 8 |
|
