| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [adv] | 63646 |
|
| 2 | [modal v] [vb infin] [to-vb] | 39464 |
|
| 3 | [vb infin] [to-vb] [adv] | 8939 |
|
| 4 | [modal v] [to-vb] [adv] | 1880 |
|
