| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] [prep] be [adj] | 3141 |
|
| 2 | it [be] [vb pp] [prep] [adj] | 916 |
|
| 3 | it [be] [vb pp] [prep] be | 698 |
|
| 4 | it [be] [prep] be [adj] | 121 |
|
| 5 | it [be] [vb pp] be [adj] | 15 |
|
