| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | carried out at the [noun] | 42 |
|
| 2 | [was/were] carried out at [noun] | 16 |
|
| 3 | [was/were] carried out at the | 9 |
|
| 4 | [was/were] out at the [noun] | 8 |
|
