| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [to-vb] [pron] [verb] [prep] | 216 |
|
| 2 | [vb past] when [pron] [verb] [prep] | 186 |
|
| 3 | [to-vb] when [pron] [verb] [prep] | 77 |
|
| 4 | [vb past] [to-vb] when [pron] [verb] | 54 |
|
