| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] need not [be] | 15 |
|
| 2 | [Wh det] need not [be] | 15 |
|
| 3 | [Wh det] need [not/n't] [be] | 15 |
|
| 4 | [Wh det] need [adv] [be] | 15 |
|
