| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] been [verb] [verb] | 489 |
|
| 2 | may [verb] be [verb] [verb] | 66 |
|
| 3 | may [verb] [be] [verb] [verb] | 66 |
|
| 4 | may [verb] [been] [verb] [verb] | 65 |
|
