| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [verb] to be | 1095 |
|
| 2 | [vb mod] be [vb pp] to be | 1076 |
|
| 3 | [vb mod] be required to be | 17 |
|
| 4 | [vb mod] be required [prep] be | 17 |
|
| 5 | [vb mod] [be] required to be | 17 |
|
| 6 | [vb mod] be require to be | 17 |
|
| 7 | [vb mod] be required to be | 17 |
|
| 8 | [vb mod] be required to [be] | 17 |
|
| 9 | [vb mod] be required [prep] be | 17 |
|
| 10 | [modal v] be required to be | 17 |
|
| 11 | [vb mod] [be] required to be | 17 |
|
