| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [vb past] [to-vb] | 5437 |
|
| 2 | [vb past] [to-vb] at | 1336 |
|
| 3 | they [vb past] at | 1141 |
|
| 4 | they [to-vb] at | 56 |
|
