| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [vb infin] [to-vb] [be] | 358 |
|
| 2 | [vb mod] [vb infin] [verb] [was/were] | 103 |
|
| 3 | [modal v] [vb infin] [to-vb] [was/were] | 19 |
|
| 4 | [vb mod] [verb] [to-vb] [was/were] | 19 |
|
