| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] they must [vb infin] | 56 |
|
| 2 | [vb base] they must [verb] | 55 |
|
| 3 | [vb base] they must have | 24 |
|
| 4 | [vb base] they must have | 23 |
|
| 5 | think they must [verb] | 13 |
|
| 6 | mean they must [verb] | 8 |
|
| 7 | know they must [verb] | 6 |
|
| 8 | feel they must [verb] | 5 |
|
