| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to be | 91055 |
|
| 2 | [vb infin] to be | 13090 |
|
| 3 | require to be | 373 |
|
| 4 | require to [be] | 54 |
|
| 5 | require to be | 54 |
|
| 6 | require [prep] be | 54 |
|
| 7 | require to [be] | 54 |
|
