| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be at | 1456 |
|
| 2 | [vb mod] be at | 1456 |
|
| 3 | should be [prep] | 1400 |
|
| 4 | should be [prep] | 1400 |
|
| 5 | should be at | 168 |
|
| 6 | should [be] at | 168 |
|
| 7 | should be at | 168 |
|
| 8 | should be at | 168 |
|
| 9 | should [be] at | 168 |
|
