| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [verb] to be | 7221 |
|
| 2 | [vb mod] [vb infin] to be | 7203 |
|
| 3 | [vb mod] require to be | 35 |
|
| 4 | [vb mod] require to [be] | 35 |
|
| 5 | [vb mod] require [prep] be | 35 |
|
| 6 | [vb mod] require to be | 35 |
|
| 7 | [vb mod] require [prep] be | 35 |
|
| 8 | [modal v] require to be | 35 |
|
| 9 | [vb mod] require to be | 35 |
|
| 10 | [vb mod] require to [be] | 35 |
|
