| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb base] be shown to [be] | 6 |
|
| 2 | which [vb base] be show to [be] | 6 |
|
| 3 | which [vb base] been show to [be] | 6 |
|
| 4 | which have be show to [be] | 6 |
|
| 5 | which [vb base] be show to be | 6 |
|
