| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] happened to be [prep] | 48 |
|
| 2 | [pron] [adv] happened to be | 47 |
|
| 3 | [adv] happened to be [prep] | 17 |
|
| 4 | [pron] [adv] to be [prep] | 9 |
|
