| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] when [pron] [verb] [verb] | 181 |
|
| 2 | is [vb pp] when [pron] [verb] | 48 |
|
| 3 | is [vb pp] [pron] [verb] [verb] | 27 |
|
