| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [Wh pn] need [to-vb] | 27 |
|
| 2 | [det] who need [verb] | 27 |
|
| 3 | those [Wh pn] need [verb] | 26 |
|
| 4 | [det] [Wh pn] need to know | 9 |
|
| 5 | [det] [Wh pn] need know | 9 |
|
