| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] [noun] [num] hours | 8 |
|
| 2 | it [vb past] [noun] [num] hour | 6 |
|
| 3 | it take [noun] [num] hour | 6 |
|
| 4 | it took [noun] [num] hour | 5 |
|
| 5 | it [verb] [noun prp] [num] hour | 5 |
|
