| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun] [vb past] [pron] | 1373 |
|
| 2 | when [noun] [vb past] [pron] | 997 |
|
| 3 | when a [noun] [vb past] | 523 |
|
| 4 | when a [noun] [pron] | 26 |
|
