| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to [be] [vb pp] [prep] | 39071 |
|
| 2 | is to [be] [vb pp] | 4662 |
|
| 3 | is [be] [vb pp] [prep] | 2889 |
|
| 4 | is to [be] [prep] | 108 |
|
