| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb -s] [verb] a [adj] | 681 |
|
| 2 | it [vb -s] [been] a [adj] | 416 |
|
| 3 | [vb -s] [been] [verb] a [adj] | 362 |
|
| 4 | it [vb -s] [been] [verb] [adj] | 126 |
|
| 5 | it [vb -s] [been] [verb] a | 36 |
|
