| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [vb past] [pers pn] [prep] | 491 |
|
| 2 | [v-ing] when [pron] [vb past] [prep] | 41 |
|
| 3 | [v-ing] when [pron] [vb past] [pers pn] | 39 |
|
| 4 | [v-ing] [pron] [vb past] [pers pn] [prep] | 12 |
|
