| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [vb infin] [be] | 24382 |
|
| 2 | [vb mod] [verb] [was/were] | 656 |
|
| 3 | [modal v] [vb infin] [was/were] | 630 |
|
