| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb past] [prep] [pers pn] at [det] | 6 |
|
| 2 | they [vb past] [prep] [pers pn] at [det] | 5 |
|
| 3 | they [vb past] [prep] [pers pn] at all | 5 |
|
