| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [pron] at | 534 |
|
| 2 | when [pron] [prep] | 122 |
|
| 3 | when [pron] [prep] | 122 |
|
| 4 | when [pron] at | 18 |
|
