| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] did [vb infin] it | 10 |
|
| 2 | when [pron] [vb past] [vb infin] it | 10 |
|
| 3 | when [pron] [vb past] [vb infin] it | 10 |
|
| 4 | when [pers pn] [vb past] [vb infin] it | 9 |
|
