| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] last week | 557 |
|
| 2 | [vb pp] [prep] last | 438 |
|
| 3 | [vb pp] last week | 218 |
|
| 4 | [vb pp] [prep] week | 85 |
|
