| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to [be] [vb pp] [prep] | 39071 |
|
| 2 | [is] to [be] [vb pp] | 4740 |
|
| 3 | [is] [be] [vb pp] [prep] | 3091 |
|
| 4 | [is] to [be] [prep] | 115 |
|
