| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] a week | 656 |
|
| 2 | a week [unc] | 285 |
|
| 3 | [noun sg] a [unc] | 73 |
|
| 4 | [noun sg] week [unc] | 7 |
|
