| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this [vb mod] be [vb pp] to | 160 |
|
| 2 | this [modal v] be [vb pp] to | 160 |
|
| 3 | this must be [vb pp] [prep] | 113 |
|
| 4 | this must be [vb pp] [prep] | 113 |
|
| 5 | [adj] must be [vb pp] to | 23 |
|
| 6 | this must [be] [vb pp] to | 11 |
|
| 7 | this must be [vb pp] to | 11 |
|
| 8 | this must be [vb pp] to | 11 |
|
| 9 | this must be [vb pp] to | 11 |
|
| 10 | this must be [verb] to | 11 |
|
| 11 | this must [be] [vb pp] to | 11 |
|
