| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | n't know [Wh det] be [v-ing] to | 10 |
|
| 2 | n't know what be [v-ing] to | 10 |
|
| 3 | n't know [Wh det] be happening to | 9 |
|
| 4 | n't know [Wh det] 's [v-ing] to | 6 |
|
