| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [verb] at [art] | 632 |
|
| 2 | they used [verb] [art] | 207 |
|
| 3 | used [verb] at [art] | 38 |
|
| 4 | they used [verb] at | 15 |
|
