| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [be] [verb] to be | 71 |
|
| 2 | must [be] [vb pp] to be | 70 |
|
| 3 | must [be] [adj] to be | 36 |
|
| 4 | must [be] [adj] to be | 35 |
|
| 5 | must [be] seen to be | 32 |
|
| 6 | must [be] see to be | 32 |
|
| 7 | must [be] assumed to be | 8 |
|
| 8 | must [be] assume to be | 8 |
|
| 9 | [pron] must [be] to be | 6 |
|
| 10 | it must [be] to be | 5 |
|
| 11 | [pers pn] must [be] to be | 5 |
|
| 12 | it must [be] to be | 5 |
|
