| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] [conj] [pron] [adv] [vb past] | 62 |
|
| 2 | must [vb infin] [conj] [pron] [adv] [verb] | 10 |
|
| 3 | must [verb] [conj] [pron] [adv] [vb past] | 7 |
|
