| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] it [modal v] be | 336 |
|
| 2 | [vb -s] it [vb mod] be | 336 |
|
| 3 | [verb] it must be | 234 |
|
| 4 | [vb -s] [pron] must be | 50 |
|
| 5 | [vb -s] [pers pn] must be | 31 |
|
| 6 | [vb -s] it must [be] | 10 |
|
| 7 | [vb -s] it must be | 10 |
|
| 8 | [vb -s] it must [be] | 10 |
|
| 9 | [vb -s] it must be | 10 |
|
| 10 | [vb -s] it must be | 10 |
|
