| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have do [adv] | 327 |
|
| 2 | must have [verb] [adv] | 316 |
|
| 3 | must [verb] do [adv] | 18 |
|
| 4 | must [vb infin] do [adv] | 18 |
|
| 5 | must have do [adv] | 13 |
|
| 6 | must have do [adv] | 13 |
|
