| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [verb] [been] [verb] at the | 7 |
|
| 2 | should [verb] [been] [vb pp] at the | 6 |
|
| 3 | should [verb] [been] at the [noun] | 7 |
|
| 4 | should [verb] [been] at the [noun sg] | 5 |
|
