| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [been] [noun pl] | 160 |
|
| 2 | [vb mod] [verb] [been] [noun pl] | 160 |
|
| 3 | may [verb] [been] [noun] | 110 |
|
| 4 | may [verb] [be] [noun pl] | 43 |
|
| 5 | may [verb] [been] [noun pl] | 42 |
|
