| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [vb pp] [verb] a | 144 |
|
| 2 | it [is] not [vb pp] [verb] | 70 |
|
| 3 | [is] not [vb pp] [verb] a | 45 |
|
| 4 | it [is] not [verb] a | 15 |
|
