| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [modal v] [vb infin] | 79413 |
|
| 2 | [modal v] [vb infin] [Wh adv] | 2832 |
|
| 3 | i [vb infin] [Wh adv] | 186 |
|
| 4 | i [modal v] [Wh adv] | 7 |
|
