| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [conj] it is [vb pp] | 239 |
|
| 2 | [conj] [Wh adv] it is [vb pp] | 66 |
|
| 3 | [vb pp] [conj] [Wh adv] it is | 13 |
|
