| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] to [be] | 1696 |
|
| 2 | [be] [vb pp] to [be] | 1669 |
|
| 3 | [be] required to [be] | 133 |
|
| 4 | [be] require to [be] | 26 |
|
| 5 | [be] required [prep] [be] | 26 |
|
| 6 | [be] required to [be] | 26 |
|
| 7 | [be] required to [be] | 26 |
|
| 8 | [be] required [prep] [be] | 26 |
|
