| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [be] [vb pp] [adv] [adv] | 312 |
|
| 2 | should [be] [vb pp] [adv] [to-vb] | 108 |
|
| 3 | [be] [vb pp] [adv] [adv] [to-vb] | 82 |
|
| 4 | should [be] [vb pp] [adv] [to-vb] | 41 |
|
