| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it should not be [vb pp] that | 79 |
|
| 2 | it should not be forget that | 32 |
|
| 3 | it should not be forgotten that | 32 |
|
| 4 | it should not be assumed that | 24 |
|
| 5 | it should not be assume that | 24 |
|
| 6 | it should not be thought that | 10 |
|
| 7 | it should not be think that | 10 |
|
