| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must be to | 10 |
|
| 2 | [pers pn] must [be] to | 9 |
|
| 3 | it must [be] to | 7 |
|
| 4 | it must [be] to | 7 |
|
