| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must have [vb pp] it [prep] | 39 |
|
| 2 | must have [vb pp] it [prep] | 39 |
|
| 3 | must have [vb pp] it in | 11 |
|
| 4 | must have [vb pp] it from | 7 |
|
| 5 | must have left it [prep] | 6 |
|
| 6 | must have got it [prep] | 5 |
|
