| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] may [verb] been [adv] a | 6 |
|
| 2 | [pers pn] may [verb] been [adv] a | 5 |
|
| 3 | may [verb] been [adv] a [noun] | 8 |
|
| 4 | may [verb] been [adv] a [noun sg] | 8 |
|
