| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may [vb infin] been [adv] [noun] | 5 |
|
| 2 | may have [been] [adv] [noun] | 5 |
|
| 3 | may [vb infin] [been] [adv] [noun] | 5 |
|
