| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] [vb pp] it [adv] [prep] | 12 |
|
| 2 | must have [verb] it [adv] [prep] | 11 |
|
| 3 | must [vb infin] [verb] it [adv prt] [prep] | 6 |
|
| 4 | must [vb infin] [verb] it [adv] [prep] | 6 |
|
