| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [verb] it at | 38 |
|
| 2 | they [vb past] it at | 20 |
|
| 3 | they [vb base] it at | 15 |
|
| 4 | they do it at | 11 |
|
| 5 | they did it at | 5 |
|
