| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been [adv] [det] | 550 |
|
| 2 | may [verb] been [adv] | 293 |
|
| 3 | may [verb] [adv] [det] | 198 |
|
| 4 | may [verb] been [det] | 49 |
|
