| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be require to be | 134 |
|
| 2 | [be] required to be | 133 |
|
| 3 | [is] require to be | 40 |
|
| 4 | is require to be | 40 |
|
| 5 | are require to be | 34 |
|
| 6 | [am/are] require to be | 34 |
|
| 7 | [was/were] require to be | 30 |
|
| 8 | be require to be | 26 |
|
| 9 | [be] require to be | 26 |
|
| 10 | were require to be | 17 |
|
| 11 | was require to be | 13 |
|
