| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] at [det] [noun] | 1051 |
|
| 2 | should be [vb pp] [det] [noun] | 71 |
|
| 3 | should be [vb pp] at [det] | 70 |
|
| 4 | should be [vb pp] at [noun] | 69 |
|
