| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it is [verb] [prep] us | 11 |
|
| 2 | [subord] it is [vb pp] [prep] us | 11 |
|
| 3 | [subord] it is [adj] [prep] us | 10 |
|
| 4 | [subord] it is [adj] [prep] us | 10 |
|
