| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [vb pp] [conj] | 4275 |
|
| 2 | is [vb pp] [conj] [det] | 735 |
|
| 3 | it is [vb pp] [det] | 176 |
|
| 4 | it is [conj] [det] | 67 |
|
| 5 | it [vb pp] [conj] [det] | 11 |
|
