| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] a [det] week | 13 |
|
| 2 | [vb past] [prep] a [det] weeks | 13 |
|
| 3 | [vb past] [prep] a [det] week | 13 |
|
| 4 | [vb past] [prep] a few week | 13 |
|
