| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] have been held at | 13 |
|
| 2 | [noun sg] has been held at | 7 |
|
| 3 | [noun sg] [vb -s] been held at | 7 |
|
| 4 | [noun sg] had been held at | 5 |
|
| 5 | [noun sg] [vb past] been held at | 5 |
|
