| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [be] required to be | 17 |
|
| 2 | [vb mod] [be] required to be | 17 |
|
| 3 | [vb mod] [be] required [prep] be | 17 |
|
| 4 | [vb mod] be required [prep] be | 17 |
|
| 5 | will [be] required [prep] be | 5 |
|
