| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] been [verb] [verb] | 489 |
|
| 2 | should [verb] be [verb] [verb] | 56 |
|
| 3 | should [verb] [be] [verb] [verb] | 56 |
|
| 4 | should [verb] [been] [verb] [verb] | 53 |
|
