| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [be] [verb] to | 4874 |
|
| 2 | [be] [verb] prior to | 149 |
|
| 3 | [prep] [be] [verb] prior | 14 |
|
| 4 | [prep] [verb] prior to | 9 |
|
