| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it is [vb pp] [noun] | 15 |
|
| 2 | [subord] it is [vb pp] [noun sg] | 7 |
|
| 3 | [subord] it is [vb pp] [noun prp] | 5 |
|
| 4 | if it is [vb pp] [noun] | 5 |
|
