| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [verb] [prep] | 59545 |
|
| 2 | [verb] [prep] an | 33491 |
|
| 3 | [vb past] [prep] an | 4217 |
|
| 4 | [vb past] [verb] an | 2881 |
|
