| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] it [modal v] [vb infin] | 868 |
|
| 2 | i [vb past] it [modal v] | 555 |
|
| 3 | i [vb past] [modal v] [vb infin] | 54 |
|
| 4 | i [vb past] it [vb infin] | 33 |
|
