| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [verb] about a hour | 13 |
|
| 2 | it [verb] [adv] a hour | 12 |
|
| 3 | it [verb] about a [noun] | 11 |
|
| 4 | it [verb] about [art] hour | 5 |
|
