| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] been [verb] | 793 |
|
| 2 | [modal v] [verb] been make | 191 |
|
| 3 | must [verb] be make | 14 |
|
| 4 | must [verb] [be] make | 14 |
|
| 5 | must [verb] [been] make | 14 |
|
