| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [not/n't] be [prep] | 131 |
|
| 2 | should be regarded [prep] | 120 |
|
| 3 | [not/n't] be regarded [prep] | 90 |
|
| 4 | should [not/n't] be regarded | 59 |
|
