| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and it be difficult [verb] [art] | 19 |
|
| 2 | and it [be] difficult [verb] [art] | 19 |
|
| 3 | and it [be] difficult [to-vb] [art] | 19 |
|
| 4 | and it [is] difficult [verb] [art] | 16 |
|
| 5 | and it is difficult [verb] [art] | 15 |
|
| 6 | and it [be] difficult [verb] the | 14 |
|
| 7 | and it [be] difficult [verb] the | 14 |
|
| 8 | and it [be] difficult [verb] a | 5 |
|
