| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] be [indef pn] [to-vb] | 25 |
|
| 2 | [pron] must be [indef pn] [to-vb] | 10 |
|
| 3 | it must be [indef pn] [verb] | 8 |
|
| 4 | [pers pn] must be [indef pn] [to-vb] | 7 |
|
| 5 | it must [be] [indef pn] [to-vb] | 7 |
|
| 6 | it must be [pron] [to-vb] | 7 |
|
| 7 | it must be [indef pn] [to-vb] | 7 |
|
