| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] not [adv] have to do | 7 |
|
| 2 | [vb base] not [adv] have to do | 6 |
|
| 3 | do not [adv] have to do | 6 |
|
| 4 | do not [adv] have to do | 5 |
|
