| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] at [noun] | 745 |
|
| 2 | which is [vb pp] at | 153 |
|
| 3 | which is at [noun] | 55 |
|
| 4 | which is [vb pp] [noun] | 37 |
|
