| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may have [vb pp] from | 96 |
|
| 2 | may have come from | 21 |
|
| 3 | may have derived from | 8 |
|
| 4 | may have resulted from | 7 |
|
| 5 | may have originated from | 6 |
|
| 6 | may have evolved from | 6 |
|
| 7 | may have arisen from | 5 |
|
