| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | more difficult [subord] it [be] | 7 |
|
| 2 | more difficult [subord] it [be] | 7 |
|
| 3 | more difficult [subord] it be | 7 |
|
| 4 | more difficult [subord] it [is] | 6 |
|
| 5 | more difficult [subord] it is | 5 |
|
