| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | carried out at [noun] [noun sg] | 18 |
|
| 2 | [vb pp] out at [noun prp] [noun sg] | 17 |
|
| 3 | [vb pp] out at [noun sg] [noun sg] | 8 |
|
| 4 | [vb pp] out at [noun] university | 5 |
|
