| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] about an hour | 50 |
|
| 2 | [vb -s] [adv] an hour | 24 |
|
| 3 | [vb -s] [adv] an hour | 22 |
|
| 4 | [vb -s] about an hour | 14 |
|
| 5 | [vb -s] about an [noun sg] | 14 |
|
| 6 | [vb -s] about an [noun] | 14 |
|
| 7 | [vb -s] about [art] hour | 14 |
|
| 8 | [vb -s] about a hour | 14 |
|
| 9 | [vb -s] about [art] hour | 14 |
|
| 10 | [vb -s] about an hour | 14 |
|
