| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [adv] happened to [pron] | 30 |
|
| 2 | [adv] happened to [pron] [adv] | 20 |
|
| 3 | [vb -s] happened to [pron] [adv] | 15 |
|
