| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it is often | 213 |
|
| 2 | [coord] it is often | 87 |
|
| 3 | [subord] it is often | 74 |
|
| 4 | and it is often | 61 |
|
| 5 | and it is often | 61 |
|
| 6 | [that] it is often | 52 |
|
| 7 | that it is often | 52 |
|
| 8 | that it is often | 52 |
|
| 9 | as it is often | 30 |
|
| 10 | as it is often | 30 |
|
| 11 | but it is often | 26 |
|
| 12 | but it is often | 26 |
|
| 13 | because it is often | 12 |
|
| 14 | because it is often | 12 |
|
| 15 | although it is often | 11 |
|
| 16 | although it is often | 11 |
|
