| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [verb] [pron] | 9517 |
|
| 2 | [vb infin] [pron] [verb] [pron] | 5115 |
|
| 3 | [vb infin] when [pron] [verb] | 731 |
|
| 4 | [vb infin] when [verb] [pron] | 6 |
|
