| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] should be [vb pp] to be | 12 |
|
| 2 | [pers pn] should be [verb] to be | 12 |
|
| 3 | it should be [verb] to be | 6 |
|
| 4 | [pron] should be see to be | 6 |
|
| 5 | it should be [verb] to be | 6 |
|
| 6 | [pron] should be seen to be | 6 |
|
