| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [verb] for [adj] | 1367 |
|
| 2 | must have [been] [verb] for | 36 |
|
| 3 | must have [been] [verb] [adj] | 34 |
|
| 4 | must have [verb] for [adj] | 10 |
|
