| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not have to [adv] [vb infin] | 15 |
|
| 2 | not have to [adv] [vb infin] | 15 |
|
| 3 | not have [prep] [adv] [vb infin] | 15 |
|
| 4 | not have [prep] [adv] [vb infin] | 15 |
|
| 5 | n't have [prep] [adv] [vb infin] | 13 |
|
