| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] be at | 1237 |
|
| 2 | involve be [prep] | 20 |
|
| 3 | involve be [prep] | 20 |
|
| 4 | involve be at | 5 |
|
| 5 | involve [be] at | 5 |
|
