| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [vb pp] to [be] [adj] | 88 |
|
| 2 | has [been] [vb pp] to [be] [adj] | 88 |
|
| 3 | has [be] [vb pp] to be [adj] | 88 |
|
| 4 | has be [vb pp] to [be] [adj] | 88 |
|
| 5 | has [be] shown to [be] [adj] | 36 |
|
| 6 | has [be] found to [be] [adj] | 17 |
|
| 7 | has [be] [vb pp] to [be] effective | 13 |
|
| 8 | has [be] designed to [be] [adj] | 5 |
|
| 9 | has [be] held to [be] [adj] | 5 |
|
| 10 | has [be] reported to [be] [adj] | 5 |
|
