| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be seen [prep] [be] | 155 |
|
| 2 | should be [vb pp] [prep] [be] | 72 |
|
| 3 | should be [verb] [prep] [be] | 72 |
|
| 4 | should be seen [prep] [be] | 17 |
|
| 5 | should be see [prep] [be] | 17 |
|
| 6 | should [be] seen [prep] [be] | 17 |
|
