| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may be [adj] [verb] [prep] [adj] | 34 |
|
| 2 | may be [adj] [verb] [prep] [adj] | 31 |
|
| 3 | [vb mod] be difficult [verb] [prep] [adj] | 12 |
|
| 4 | [modal v] be difficult [verb] [prep] [adj] | 12 |
|
| 5 | may be difficult [verb] [prep] [adj] | 10 |
|
| 6 | may be difficult [verb] [prep] [adj] | 5 |
|
| 7 | may be difficult [verb] [prep] [adj] | 5 |
|
| 8 | may be difficult [verb] [prep] [adj] | 5 |
|
| 9 | may be difficult [verb] [prep] [adj] | 5 |
|
| 10 | may [be] difficult [verb] [prep] [adj] | 5 |
|
| 11 | may [be] difficult [verb] [prep] [adj] | 5 |
|
