| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should not [be] [vb pp] [to-vb] | 258 |
|
| 2 | should not [be] [vb pp] [adv] | 175 |
|
| 3 | should [be] [vb pp] [adv] [to-vb] | 41 |
|
| 4 | not [be] [vb pp] [adv] [to-vb] | 20 |
|
