| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be [noun] | 2046 |
|
| 2 | be when [noun] | 296 |
|
| 3 | [vb past] when [noun] | 37 |
|
| 4 | [vb past] be when | 19 |
|
