| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | on a [noun] [unc] | 485 |
|
| 2 | [prep] a week [unc] | 124 |
|
| 3 | on [art] week [unc] | 12 |
|
| 4 | on [art] week [unc] | 12 |
|
| 5 | on a week [unc] | 10 |
|
