| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] [prep] be a | 812 |
|
| 2 | [adv] [vb past] [prep] be a | 104 |
|
| 3 | [adv] happen [prep] be a | 25 |
|
| 4 | [adv] happened [prep] be [art] | 17 |
|
| 5 | [adv] happened [prep] be a | 9 |
|
| 6 | [adv] happened [prep] be a | 9 |
|
| 7 | [adv] happened [prep] [be] a | 9 |
|
| 8 | [adv] happened [prep] [be] a | 9 |
|
