| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] happened to be | 74 |
|
| 2 | [adv] happened to be | 74 |
|
| 3 | [adv] happened to [be] | 74 |
|
| 4 | just happened to [be] | 53 |
|
| 5 | also happened to [be] | 11 |
|
