| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] [adv] happened to | 11 |
|
| 2 | [pron] had [adv] happen to | 11 |
|
| 3 | [pers pn] [vb past] [adv] happen to | 10 |
|
| 4 | it [vb past] [adv] happen to | 8 |
|
| 5 | it [vb past] [adv] happen to | 8 |
|
| 6 | [pron] [vb past] never happen to | 5 |
|
