| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been placed at the | 10 |
|
| 2 | have been placed at the | 10 |
|
| 3 | had been placed at the | 5 |
|
| 4 | [vb past] been placed at the | 5 |
|
| 5 | been placed at the [noun] | 11 |
|
| 6 | been placed at the [noun sg] | 11 |
|
