| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] need [prep] be [v-ing] | 47 |
|
| 2 | [Wh det] [pron] need [prep] be | 24 |
|
| 3 | [Wh det] [pron] need [prep] [v-ing] | 6 |
|
