| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | because it is [adv] | 629 |
|
| 2 | because it is [adv] | 448 |
|
| 3 | [conj] it is often | 213 |
|
| 4 | [subord] it is often | 74 |
|
| 5 | because it be often | 18 |
|
| 6 | because it [be] often | 18 |
|
| 7 | because it [is] often | 15 |
|
| 8 | because [pron] is often | 14 |
|
| 9 | because it is often | 12 |
|
| 10 | because it is often | 12 |
|
