| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [prep] | 1621 |
|
| 2 | it is [adv] because | 174 |
|
| 3 | is [adv] because [prep] | 110 |
|
| 4 | it is because [prep] | 59 |
|
| 5 | it [adv] because [prep] | 18 |
|
