| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may be [adj] [noun] | 949 |
|
| 2 | [modal v] be [adj] problem | 59 |
|
| 3 | may be [adj] problem | 15 |
|
| 4 | may [be] [adj] problem | 15 |
|
| 5 | may [be] [adj] problem | 15 |
|
