| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they should [adv] be in | 9 |
|
| 2 | they should [adv] be [prep] | 8 |
|
| 3 | they should not be [prep] | 6 |
|
| 4 | they should [not/n't] be [prep] | 6 |
|
