| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] require to be | 35 |
|
| 2 | [modal v] require to be | 35 |
|
| 3 | will require to be | 19 |
|
| 4 | will require to be | 19 |
|
| 5 | would require to be | 9 |
|
| 6 | would require to be | 9 |
|
| 7 | may require to be | 6 |
|
| 8 | may require to be | 6 |
|
