| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may have been [verb] in | 90 |
|
| 2 | may have be [verb] in | 90 |
|
| 3 | may have be [verb] in | 90 |
|
| 4 | may have be [verb] in | 90 |
|
| 5 | may have be [vb pp] in | 77 |
|
| 6 | may have be [v-ing] in | 12 |
|
| 7 | may have be used in | 5 |
|
| 8 | may have be use in | 5 |
|
