| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may have [be] [vb pp] [prep] | 550 |
|
| 2 | may [be] [vb pp] [prep] [adj -er] | 42 |
|
| 3 | have [be] [vb pp] [prep] [adj -er] | 20 |
|
| 4 | may have [vb pp] [prep] [adj -er] | 5 |
|
