| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be when | 95 |
|
| 2 | [vb past] been when | 90 |
|
| 3 | had be when | 84 |
|
| 4 | 'd be when | 6 |
|
| 5 | [vb past] was when | 5 |
|
