| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 's [adj] [to-vb] [noun] | 278 |
|
| 2 | [be] hard [to-vb] [noun] | 100 |
|
| 3 | be hard [to-vb] [noun] | 100 |
|
| 4 | [is] hard [to-vb] [noun] | 72 |
|
| 5 | 's hard [verb] [noun] | 22 |
|
