| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] to [be] | 12985 |
|
| 2 | [adv] [vb past] to [be] | 1102 |
|
| 3 | [adv] happen to [be] | 189 |
|
| 4 | [adv] happened [prep] [be] | 74 |
|
