| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb past] [vb pp] [pers pn] | 700 |
|
| 2 | [vb past] [vb pp] [pers pn] at | 194 |
|
| 3 | they [vb past] [vb pp] at | 109 |
|
| 4 | they [vb past] [pers pn] at | 66 |
|
