| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] have [been] a [noun sg] | 118 |
|
| 2 | may have [been] a [noun sg] | 109 |
|
| 3 | may [adv] have a [noun sg] | 46 |
|
| 4 | may [adv] have [been] a | 44 |
|
| 5 | may [adv] have [been] [noun sg] | 7 |
|
