| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may [be] [vb pp] [prep] a | 931 |
|
| 2 | may [be] [vb pp] [prep] [det] | 557 |
|
| 3 | [be] [vb pp] [prep] a [det] | 113 |
|
