| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must have been [verb] [adv prt] | 58 |
|
| 2 | have been [verb] [adv prt] with | 16 |
|
| 3 | must have been [verb] with | 13 |
|
| 4 | must have [verb] [adv prt] with | 6 |
|
