| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may [be] [vb pp] for [adj] | 79 |
|
| 2 | may be [vb pp] for [adj] | 79 |
|
| 3 | may [be] used for [adj] | 14 |
|
| 4 | may [be] required for [adj] | 6 |
|
| 5 | may [be] [vb pp] for other | 5 |
|
