| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that they must [verb] their | 8 |
|
| 2 | [that] they must [verb] their | 8 |
|
| 3 | [that] they must [vb infin] their | 8 |
|
| 4 | [that] they must [verb] their | 8 |
|
