| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [prep] a | 446 |
|
| 2 | [adj] it is [prep] | 191 |
|
| 3 | [adj] it is a | 38 |
|
| 4 | [adj] is [prep] a | 22 |
|
| 5 | [adj] it [prep] a | 6 |
|
