| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be hard not [to-vb] [prep] | 9 |
|
| 2 | it [be] hard not [to-vb] [prep] | 9 |
|
| 3 | it [is] hard not [to-vb] [prep] | 6 |
|
| 4 | it is hard not [to-vb] [prep] | 5 |
|
