| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pron] [adv] [prep] | 2614 |
|
| 2 | [prep] [pron] happen [prep] | 435 |
|
| 3 | [pron] [adv] happen [prep] | 255 |
|
| 4 | [prep] [pron] [adv] happen | 80 |
|
