| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should be [prep] | 1400 |
|
| 2 | [modal v] be under | 213 |
|
| 3 | [vb mod] be under | 213 |
|
| 4 | should be under | 22 |
|
| 5 | should [be] under | 22 |
|
| 6 | should [be] under | 22 |
|
| 7 | should be under | 22 |
|
