| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] when i [verb] | 225 |
|
| 2 | [v-ing] when i [verb] | 80 |
|
| 3 | [vb past] [v-ing] i [verb] | 14 |
|
| 4 | [vb past] [v-ing] when i | 14 |
|
