| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must be [verb] in [noun sg] | 263 |
|
| 2 | must be [vb pp] in [noun sg] | 258 |
|
| 3 | [modal v] be seen in [noun sg] | 95 |
|
| 4 | must be seen [prep] [noun sg] | 11 |
|
| 5 | must be seen [prep] [noun sg] | 11 |
|
| 6 | must be seen in [noun] | 9 |
|
| 7 | must [be] seen in [noun sg] | 6 |
|
| 8 | must be seen in [noun sg] | 6 |
|
| 9 | must be see in [noun sg] | 6 |
|
