| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what is [v-ing] to | 107 |
|
| 2 | [Wh det] is happening to | 91 |
|
| 3 | which is [v-ing] to | 52 |
|
| 4 | [Wh det] is going to | 48 |
|
