| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not have [verb] | 5349 |
|
| 2 | [vb mod] not have [verb] | 5349 |
|
| 3 | need not [verb] [verb] | 154 |
|
| 4 | need [adv] have [verb] | 128 |
|
| 5 | need not have [verb] | 123 |
|
