| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] they [vb infin] | 1880 |
|
| 2 | they must [vb infin] | 1579 |
|
| 3 | [vb base] they must | 95 |
|
| 4 | [vb base] must [vb infin] | 41 |
|
