| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb past] [det] [noun] [prep] | 397 |
|
| 2 | [vb past] at [det] [noun] [prep] | 191 |
|
| 3 | they [vb past] at [det] [noun] | 143 |
|
| 4 | they [vb past] at [noun] [prep] | 34 |
|
