| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] been at | 140 |
|
| 2 | might [verb] been [prep] | 135 |
|
| 3 | might [verb] [been] at | 12 |
|
| 4 | might [verb] be at | 12 |
|
| 5 | might [verb] [be] at | 12 |
|
