| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it must not be [vb pp] [conj] | 32 |
|
| 2 | it must not [be] [vb pp] [that] | 29 |
|
| 3 | it must not [be] [vb pp] that | 29 |
|
| 4 | it must not [be] [vb pp] that | 29 |
|
| 5 | it must not [be] forgotten [conj] | 12 |
|
| 6 | it must not [be] assumed [conj] | 8 |
|
| 7 | it must not [be] thought [conj] | 6 |
|
