| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] when [pron] [verb] | 180 |
|
| 2 | had [be] when [pron] [verb] | 36 |
|
| 3 | had [be] [v-ing] [pron] [verb] | 25 |
|
| 4 | had [be] [v-ing] when [pron] | 13 |
|
