| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pers pn] [be] [v-ing] | 3571 |
|
| 2 | [unc] [pers pn] [be] [v-ing] | 1048 |
|
| 3 | [unc] when [pers pn] [be] | 176 |
|
