| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [is] [adv] [verb] in | 233 |
|
| 2 | [Wh det] [be] [adv] happen in | 27 |
|
| 3 | [Wh det] [is] [adv] happen [prep] | 26 |
|
| 4 | [pron] [is] [adv] happen in | 23 |
|
| 5 | [Wh det] [is] [adv] happen in | 20 |
|
