| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] should be [prep] | 13 |
|
| 2 | [verb] should be of | 11 |
|
| 3 | [vb base] should be [prep] | 6 |
|
| 4 | [verb] should be on | 5 |
|
| 5 | think should be [prep] | 5 |
|
| 6 | [verb] should be in | 5 |
|
