| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should be [verb] to | 1848 |
|
| 2 | should be [vb pp] to | 1810 |
|
| 3 | should be held [prep] | 85 |
|
| 4 | should be held [prep] | 85 |
|
| 5 | [modal v] be held to | 34 |
|
| 6 | should [be] held to | 10 |
|
| 7 | should be held to | 10 |
|
| 8 | should be hold to | 10 |
|
