| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not be | 25780 |
|
| 2 | need [adv] be | 835 |
|
| 3 | need not be | 778 |
|
| 4 | need [not/n't] be | 778 |
|
| 5 | need not [be] | 698 |
|
