| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it a hard [noun] | 6 |
|
| 2 | it be a hard [noun] | 60 |
|
| 3 | it [be] a hard [noun] | 60 |
|
| 4 | it [is] a hard [noun] | 39 |
|
| 5 | it 's a hard [noun] | 29 |
|
| 6 | it was a hard [noun] | 21 |
|
| 7 | it [was/were] a hard [noun] | 21 |
|
| 8 | it is a hard [noun] | 10 |
|
| 9 | it [verb] a hard [noun] | 10 |
|
| 10 | it [vb -s] a hard [noun] | 5 |
|
