| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [verb] [num] hours [verb] | 8 |
|
| 2 | [coord] [verb] [num] hours [to-vb] | 6 |
|
| 3 | [coord] [vb past] [num] hours [verb] | 5 |
|
| 4 | [coord] take [num] hours [verb] | 5 |
|
