| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] a [num] week | 17 |
|
| 2 | [vb pp] [prep] a [num] week | 17 |
|
| 3 | [vb pp] a [num] week [noun sg] | 7 |
|
| 4 | [vb pp] a [num] week [noun] | 7 |
|
