| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] i [adv] | 1015 |
|
| 2 | [modal v] i [adv] | 1015 |
|
| 3 | must [pron] [adv] | 28 |
|
| 4 | must i [adv] | 7 |
|
| 5 | must i [adv] | 6 |
|
