| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] he [be] [v-ing] [prep] | 1481 |
|
| 2 | when [pron] [be] [v-ing] [prep] | 986 |
|
| 3 | when [pers pn] [be] [v-ing] [prep] | 964 |
|
| 4 | when he [be] [verb] [prep] | 462 |
|
| 5 | when he [be] [v-ing] [prep] | 124 |
|
