| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [num] hours [adv] a [noun] | 10 |
|
| 2 | [num] hour [adv] a [noun] | 10 |
|
| 3 | [num] hour [adv] a [noun sg] | 9 |
|
| 4 | [num] hour [adv] a week | 5 |
|
| 5 | [num] hour [adv] a week | 5 |
|
