| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may [vb infin] been [prep] | 145 |
|
| 2 | may [vb infin] [prep] this | 82 |
|
| 3 | [vb infin] been [prep] this | 30 |
|
| 4 | may [vb infin] been this | 6 |
|
