| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [vb pp] [det] [noun] | 326 |
|
| 2 | should be [vb pp] [det] [noun] | 71 |
|
| 3 | it should be [vb pp] [det] | 24 |
|
| 4 | it should be [det] [noun] | 9 |
|
| 5 | it should be [vb pp] [noun] | 6 |
|
