| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] have been [art] [adj] | 232 |
|
| 2 | may have been [art] [adj] | 172 |
|
| 3 | may [adv] have been [adj] | 114 |
|
| 4 | may [adv] have been [art] | 99 |
|
| 5 | may [adv] have [art] [adj] | 92 |
|
