| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] week | 461 |
|
| 2 | [vb past] [prep] a [det] | 300 |
|
| 3 | [vb past] [prep] a week | 42 |
|
| 4 | [vb past] a [det] week | 29 |
|
| 5 | [vb past] [prep] [det] week | 20 |
|
