| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] they [vb infin] | 3149 |
|
| 2 | they must [vb infin] | 1579 |
|
| 3 | [verb] they must | 240 |
|
| 4 | [verb] must [vb infin] | 234 |
|
