| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [verb] | 51061 |
|
| 2 | [pron] be refer | 533 |
|
| 3 | [pers pn] be refer | 426 |
|
| 4 | it [be] refer | 49 |
|
| 5 | it be refer | 49 |
|
