| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [num] hour at [art] time | 9 |
|
| 2 | [prep] [num] hour at [art] time | 9 |
|
| 3 | [conj] [num] hour at [art] time | 8 |
|
| 4 | or [num] hour at [art] time | 5 |
|
| 5 | [coord] [num] hour at [art] time | 5 |
|
| 6 | for [num] hour at [art] time | 5 |
|
| 7 | or [num] hour at [art] time | 5 |
|
| 8 | for [num] hour at [art] time | 5 |
|
