| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [was/were] [vb pp] | 5860 |
|
| 2 | [was/were] [vb pp] when | 1350 |
|
| 3 | [det] [vb pp] when | 40 |
|
| 4 | [det] [was/were] when | 23 |
|
