| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if [pron] [verb] at | 971 |
|
| 2 | if they [verb] [prep] | 786 |
|
| 3 | if they [verb] [prep] | 777 |
|
| 4 | [conj] they [verb] at | 616 |
|
| 5 | if they [verb] at | 57 |
|
