| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [verb] [vb pp] | 22289 |
|
| 2 | [verb] [vb pp] at | 4126 |
|
| 3 | they [verb] at | 1977 |
|
| 4 | they [vb pp] at | 29 |
|
