| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [subord] | 367 |
|
| 2 | it is [adv] [that] | 352 |
|
| 3 | it is [that] [subord] | 20 |
|
| 4 | is [adv] [that] [subord] | 19 |
|
| 5 | it [adv] [that] [subord] | 6 |
|
