| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [det] hour | 1000 |
|
| 2 | a [det] hours | 960 |
|
| 3 | a few hour | 707 |
|
| 4 | a half hour | 296 |
|
| 5 | a [det] hour | 43 |
|
