| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] [been] a hard | 20 |
|
| 2 | it have [be] a hard | 20 |
|
| 3 | it [verb] be a hard | 20 |
|
| 4 | it [verb] been a hard | 20 |
|
| 5 | it [verb] [be] a hard | 20 |
|
| 6 | it [vb -s] [be] a hard | 12 |
|
| 7 | it [vb past] [be] a hard | 8 |
|
| 8 | it had [be] a hard | 8 |
|
| 9 | it 's [be] a hard | 7 |
|
| 10 | it has [be] a hard | 5 |
|
