| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not be seen | 279 |
|
| 2 | [vb mod] not be seen | 279 |
|
| 3 | need not be [verb] | 273 |
|
| 4 | need not be [vb pp] | 270 |
|
| 5 | need not be seen | 6 |
|
| 6 | need not be seen | 6 |
|
| 7 | need [adv] be seen | 6 |
|
| 8 | need not be see | 6 |
|
| 9 | need not [be] seen | 6 |
|
| 10 | need not [be] seen | 6 |
|
