| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] [adv] [verb] to be | 84 |
|
| 2 | [pron] [adv] happened to be | 47 |
|
| 3 | [Wh pn] [adv] [vb past] to be | 38 |
|
| 4 | [Wh pn] [adv] happen to be | 17 |
|
| 5 | [Wh pn] [adv] happened [prep] be | 9 |
|
| 6 | [Wh pn] [adv] happened to [be] | 9 |
|
| 7 | [Wh pn] [adv] happened to be | 9 |
|
