| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [vb pp] [conj] | 4275 |
|
| 2 | [vb base] it is [vb pp] | 56 |
|
| 3 | [vb base] it is [conj] | 51 |
|
| 4 | [vb base] it [vb pp] [conj] | 25 |
|
| 5 | [vb base] is [vb pp] [conj] | 18 |
|
