| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for about three [noun] | 102 |
|
| 2 | for about [num] hour | 81 |
|
| 3 | for about [adj] hour | 81 |
|
| 4 | for [adv] three hour | 32 |
|
| 5 | for [adv] three hour | 32 |
|
| 6 | [prep] about three hour | 14 |
|
| 7 | [prep] about three hour | 14 |
|
| 8 | for about three hour | 12 |
|
| 9 | for about three hour | 12 |
|
| 10 | for about three hour | 12 |
|
