| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] a | 28724 |
|
| 2 | [vb past] [prep] last | 717 |
|
| 3 | [prep] a last | 302 |
|
| 4 | [vb past] a last | 89 |
|
