| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which is [verb] at a [noun] | 9 |
|
| 2 | which is [verb] at a [noun sg] | 8 |
|
| 3 | which is [vb pp] at a [noun] | 7 |
|
| 4 | which is [verb] at a [noun] | 7 |
|
