| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [is] [prep] | 319 |
|
| 2 | [vb pp] [is] [prep] | 319 |
|
| 3 | [verb] [is] to | 201 |
|
| 4 | [vb pp] [be] to | 67 |
|
| 5 | [vb pp] [is] to | 35 |
|
