| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb -s] [be] show that the | 27 |
|
| 2 | it [vb -s] be show that the | 27 |
|
| 3 | it [vb -s] [been] show that the | 27 |
|
| 4 | it [vb -s] been show that the | 27 |
|
| 5 | it [vb -s] [be] shown that the | 27 |
|
| 6 | it has [be] show that the | 26 |
|
