| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should be [verb] that [noun] | 27 |
|
| 2 | should be [vb pp] that [noun] | 22 |
|
| 3 | should be noted that [noun] | 6 |
|
| 4 | should be note that [noun] | 6 |
|
