| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which has been [verb] [prep] [be] | 20 |
|
| 2 | which has been [vb pp] [prep] [be] | 20 |
|
| 3 | which have been shown [prep] [be] | 13 |
|
| 4 | which [verb] been shown [prep] [be] | 13 |
|
| 5 | [pron] has been shown [prep] [be] | 11 |
|
| 6 | which has be shown [prep] [be] | 6 |
|
| 7 | which has been show [prep] [be] | 6 |
|
| 8 | which has [been] shown [prep] [be] | 6 |
|
| 9 | which has [be] shown [prep] [be] | 6 |
|
| 10 | which [vb -s] been shown [prep] [be] | 6 |
|
| 11 | which has been shown [prep] [be] | 6 |
|
