| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] hours [art] | 20 |
|
| 2 | [prep] a [det] hour [art] | 20 |
|
| 3 | [prep] a [det] hour [art] | 20 |
|
| 4 | [prep] a few hour [art] | 20 |
|
| 5 | [prep] a [det] hour [art] | 20 |
|
| 6 | [prep] a [det] hour a | 10 |
|
| 7 | for a [det] hour [art] | 10 |
|
| 8 | for a [det] hour [art] | 10 |
|
| 9 | [prep] a [det] hour a | 9 |
|
| 10 | [prep] a [det] hour the | 8 |
|
| 11 | [prep] a [det] hour the | 8 |
|
