| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may [adv] have [art] | 191 |
|
| 2 | [adv] have had [art] | 168 |
|
| 3 | may have had [art] | 83 |
|
| 4 | may [adv] have had | 54 |
|
