| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] they [modal v] [vb infin] | 3121 |
|
| 2 | how [pron] [modal v] [vb infin] | 2308 |
|
| 3 | [Wh adv] they [modal v] [vb infin] | 903 |
|
| 4 | how they [modal v] [verb] | 462 |
|
| 5 | how they [modal v] [vb infin] | 431 |
|
