| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | only a [noun] | 4135 |
|
| 2 | only a [noun sg] | 4035 |
|
| 3 | [adv] a week | 1444 |
|
| 4 | [adv] a week | 1400 |
|
| 5 | only [art] week | 81 |
|
| 6 | only a week | 77 |
|
| 7 | only a week | 76 |
|
