| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have [been] [adj] for | 241 |
|
| 2 | must have [been] [adj] [prep] | 169 |
|
| 3 | must have [been] [adj] [prep] | 169 |
|
| 4 | must have [been] [adj] for | 48 |
|
| 5 | must have [been] [adj] for | 47 |
|
| 6 | must have [be] [adj] for | 47 |
|
| 7 | must [verb] [been] [adj] for | 47 |
|
