| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must be to be | 6 |
|
| 2 | [pron] must be to be | 6 |
|
| 3 | [pron] must be [prep] be | 6 |
|
| 4 | [pron] must be [prep] be | 6 |
|
| 5 | it must be [prep] be | 5 |
|
| 6 | [pers pn] must be [prep] be | 5 |
|
| 7 | it must be [prep] be | 5 |
|
