| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to be [vb pp] | 30391 |
|
| 2 | [vb past] to be [vb pp] | 6822 |
|
| 3 | happened to be [verb] | 121 |
|
| 4 | happen to be [vb pp] | 67 |
|
| 5 | happened [prep] be [vb pp] | 32 |
|
| 6 | happened to [be] [vb pp] | 32 |
|
