| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] than [noun] a | 163 |
|
| 2 | [adv] [noun] a week | 131 |
|
| 3 | than [noun] a week | 48 |
|
| 4 | [adv] than a week | 24 |
|
