| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it should be [vb pp] that | 831 |
|
| 2 | it should [adv] be [vb pp] | 514 |
|
| 3 | should [adv] be [vb pp] that | 230 |
|
| 4 | it [adv] be [vb pp] that | 14 |
|
