| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] to be [verb] | 492 |
|
| 2 | be [vb pp] to be [verb] | 481 |
|
| 3 | be required to be [verb] | 88 |
|
| 4 | [be] required to be [verb] | 88 |
|
| 5 | be required [prep] be [verb] | 17 |
|
| 6 | be required [prep] be [verb] | 17 |
|
| 7 | be required to [be] [verb] | 17 |
|
| 8 | be require to be [verb] | 17 |
|
| 9 | [be] required to be [verb] | 17 |
|
| 10 | be required to be [verb] | 17 |
|
| 11 | be required to be [verb] | 17 |
|
| 12 | be required to [be] [verb] | 17 |
|
