| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [modal v] [be] [verb] to | 191 |
|
| 2 | [was/were] [verb] [modal v] [be] [verb] | 54 |
|
| 3 | [was/were] [verb] [be] [verb] to | 13 |
|
