| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [prep] | 1622 |
|
| 2 | it is [adv] [that] | 352 |
|
| 3 | is [adv] [that] [prep] | 26 |
|
| 4 | it is [that] [prep] | 21 |
|
