| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [vb past] at [noun] | 1943 |
|
| 2 | [noun] they [vb past] [noun] | 398 |
|
| 3 | they [vb past] at [noun] | 244 |
|
| 4 | [noun] they [vb past] at | 102 |
|
