| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | before [verb] [prep] [art] | 977 |
|
| 2 | hours [verb] [prep] [art] | 160 |
|
| 3 | hours before [verb] [prep] | 13 |
|
| 4 | hours before [verb] [art] | 12 |
|
