| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adj] [prep] us | 113 |
|
| 2 | it is [adj] [prep] us | 108 |
|
| 3 | it is hard [prep] [pron] | 18 |
|
| 4 | it is hard [prep] [pers pn] | 17 |
|
| 5 | it [be] hard [prep] us | 10 |
|
| 6 | it be hard [prep] us | 10 |
|
| 7 | it is hard [prep] us | 9 |
|
| 8 | it is hard [prep] we | 9 |
|
| 9 | it is hard [prep] us | 9 |
|
| 10 | [pron] is hard [prep] us | 9 |
|
| 11 | it [is] hard [prep] us | 9 |
|
