| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not have [vb pp] [verb] | 271 |
|
| 2 | need [adv] have [vb pp] [verb] | 6 |
|
| 3 | need not have [verb] [verb] | 6 |
|
| 4 | need not [verb] [vb pp] [verb] | 6 |
|
