| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [vb pp] [prep] | 1421 |
|
| 2 | is [adv] [vb pp] [prep] [verb] | 535 |
|
| 3 | it is [adv] [prep] [verb] | 318 |
|
| 4 | it is [adv] [vb pp] [verb] | 169 |
|
| 5 | it is [vb pp] [prep] [verb] | 111 |
|
