| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] hour or more per [noun sg] | 9 |
|
| 2 | [num] hour or [adv] per [noun sg] | 9 |
|
| 3 | [adj] hours or [adv] per [noun sg] | 9 |
|
| 4 | [adj] hour or [adv] per week | 8 |
|
