| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] hours [det] | 8 |
|
| 2 | [prep] a [det] hours [det] | 8 |
|
| 3 | for a [det] hours [det] | 7 |
|
| 4 | for a [det] hours [det] | 7 |
|
| 5 | a [det] hours [prep] [det] | 6 |
|
| 6 | a [det] hours [prep] [det] | 6 |
|
| 7 | a [det] hours [det] [noun] | 15 |
|
| 8 | a [det] hours [det] [noun sg] | 14 |
|
