| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] [be] [adj] | 5895 |
|
| 2 | [vb pp] [prep] [be] [adj] | 5032 |
|
| 3 | [verb] [prep] [be] necessary | 118 |
|
| 4 | [vb pp] [prep] [be] necessary | 54 |
|
