| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] required to be | 133 |
|
| 2 | be required to [be] | 133 |
|
| 3 | [be] required to [be] | 133 |
|
| 4 | [be] required to be | 133 |
|
| 5 | [is] required to [be] | 39 |
|
| 6 | is required to [be] | 39 |
|
| 7 | are required to [be] | 34 |
|
| 8 | [am/are] required to [be] | 34 |
|
| 9 | [was/were] required to [be] | 30 |
|
| 10 | be required to [be] | 26 |
|
| 11 | [be] required to [be] | 26 |
|
| 12 | were required to [be] | 17 |
|
| 13 | was required to [be] | 13 |
|
