| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [adv] happen [prep] be | 107 |
|
| 2 | [pron] happen [prep] be [prep] | 97 |
|
| 3 | [adv] happen [prep] be [prep] | 26 |
|
| 4 | [pron] [adv] [prep] be [prep] | 16 |
|
