| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [vb past] to [pron] | 281 |
|
| 2 | but when [pron] [vb past] [pron] | 247 |
|
| 3 | but [pron] [vb past] to [pron] | 133 |
|
| 4 | but when [pron] [vb past] to | 112 |
|
