| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they should [not/n't] be [vb pp] | 113 |
|
| 2 | [adv] they should be [vb pp] | 88 |
|
| 3 | [adv] should [not/n't] be [vb pp] | 33 |
|
| 4 | [adv] they should [not/n't] be | 24 |
|
