| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] make a mistake | 10 |
|
| 2 | must [verb] made a mistake | 10 |
|
| 3 | must [verb] [vb pp] a mistake | 10 |
|
| 4 | must [vb infin] [verb] a mistake | 10 |
|
| 5 | must have [verb] a mistake | 10 |
|
| 6 | must have [verb] a mistake | 9 |
|
