| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it must be [verb] that these | 20 |
|
| 2 | [pers pn] must be [verb] that these | 20 |
|
| 3 | [pron] must be [verb] that these | 20 |
|
| 4 | it must be [verb] that these | 20 |
|
| 5 | must be [verb] that these [noun] | 17 |
|
| 6 | must be [verb] that these [noun pl] | 15 |
|
