| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be held at the | 173 |
|
| 2 | was held at the | 76 |
|
| 3 | being held at the | 44 |
|
| 4 | are held at the | 13 |
|
| 5 | is held at the | 10 |
|
| 6 | been held at the | 10 |
|
| 7 | were held at the | 8 |
|
