| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [pron] must [vb infin] | 1260 |
|
| 2 | knew [pron] [modal v] [vb infin] | 627 |
|
| 3 | [vb past] [pron] must [vb infin] | 347 |
|
| 4 | know [pron] must [vb infin] | 108 |
|
| 5 | knew [pron] must [verb] | 56 |
|
