| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] be [v-ing] to happen to | 74 |
|
| 2 | know [Wh det] be [v-ing] to happen | 65 |
|
| 3 | know [Wh det] be [v-ing] to | 38 |
|
